Fix bug in dependabot.yml "security-updates" settings

"security-updates" configs can only be in sections where there is no "target-branch". This is because they only apply to the primary branch.

Author: tdonohue

.github/dependabot.yml

@@ -1,12 +1,16 @@
-# Enable Dependabot NPM updates for all dependencies on a weekly basis
+#-------------------
+# DSpace's dependabot rules. Enables npm updates for all dependencies on a weekly basis
+# for main and any maintenance branches. Security updates only apply to main.
+#-------------------
 version: 2
 updates:
   ###############
   ## Main branch
   ###############
+  # NOTE: At this time, "security-updates" rules only apply if "target-branch" is unspecified
+  # So, only this first section can include "applies-to: security-updates"
   - package-ecosystem: "npm"
     directory: "/"
-    target-branch: main
     schedule:
       interval: "weekly"
     # Allow up to 10 open PRs for dependencies
@@ -159,14 +163,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together all security updates for Angular. Only accept minor/patch types.
-      angular-security:
-        applies-to: security-updates
-        patterns:
-        - "@angular*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together all minor/patch version updates for NgRx in a single PR
       ngrx:
         applies-to: version-updates
@@ -175,14 +171,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together all security updates for NgRx. Only accept minor/patch types.
-      ngrx-security:
-        applies-to: security-updates
-        patterns:
-        - "@ngrx*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together all patch version updates for eslint in a single PR
       eslint:
         applies-to: version-updates
@@ -192,15 +180,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together all security updates for eslint.
-      eslint-security:
-        applies-to: security-updates
-        patterns:
-        - "@typescript-eslint*"
-        - "eslint*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together any testing related version updates
       testing:
         applies-to: version-updates
@@ -213,18 +192,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together any testing related security updates
-      testing:
-        applies-to: security-updates
-        patterns:
-        - "@cypress*"
-        - "cypress*"
-        - "jasmine*"
-        - "karma*"
-        - "ng-mocks"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together any postcss related version updates
       postcss:
         applies-to: version-updates
@@ -233,23 +200,7 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together any postcss related security updates
-      postcss:
-        applies-to: security-updates
-        patterns:
-        - "postcss*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together any sass related version updates
-      sass:
-        applies-to: version-updates
-        patterns:
-        - "sass*"
-        update-types:
-        - "minor"
-        - "patch"
-      # Group together any sass related security updates
       sass:
         applies-to: version-updates
         patterns:
@@ -265,14 +216,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together any webpack related seurity updates
-      webpack:
-        applies-to: security-updates
-        patterns:
-        - "webpack*"
-        update-types:
-        - "minor"
-        - "patch"
     ignore:
       # Ignore all major version updates for all dependencies. We'll only automate minor/patch updates.
       - dependency-name: "*"
@@ -297,14 +240,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together all security updates for Angular. Only accept minor/patch types.
-      angular-security:
-        applies-to: security-updates
-        patterns:
-        - "@angular*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together all minor/patch version updates for NgRx in a single PR
       ngrx:
         applies-to: version-updates
@@ -313,14 +248,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together all security updates for NgRx. Only accept minor/patch types.
-      ngrx-security:
-        applies-to: security-updates
-        patterns:
-        - "@ngrx*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together all patch version updates for eslint in a single PR
       eslint:
         applies-to: version-updates
@@ -330,15 +257,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together all security updates for eslint.
-      eslint-security:
-        applies-to: security-updates
-        patterns:
-        - "@typescript-eslint*"
-        - "eslint*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together any testing related version updates
       testing:
         applies-to: version-updates
@@ -351,18 +269,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together any testing related security updates
-      testing:
-        applies-to: security-updates
-        patterns:
-        - "@cypress*"
-        - "cypress*"
-        - "jasmine*"
-        - "karma*"
-        - "ng-mocks"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together any postcss related version updates
       postcss:
         applies-to: version-updates
@@ -371,14 +277,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together any postcss related security updates
-      postcss:
-        applies-to: security-updates
-        patterns:
-        - "postcss*"
-        update-types:
-        - "minor"
-        - "patch"
       # Group together any sass related version updates
       sass:
         applies-to: version-updates
@@ -387,14 +285,6 @@ updates:
         update-types:
         - "minor"
         - "patch"
-      # Group together any sass related security updates
-      sass:
-        applies-to: version-updates
-        patterns:
-        - "sass*"
-        update-types:
-        - "minor"
-        - "patch"
     ignore:
       # 7.x Cannot update Webpack past v5.76.1 as later versions not supported by Angular 15
       # See also https://github.com/DSpace/dspace-angular/pull/3283#issuecomment-2372488489