Update dependabot.yml

Author: puneetbehl

.github/dependabot.yml

@@ -1,19 +1,13 @@
 version: 2
 updates:
-  - package-ecosystem: "gradle"
-    directory: "/"
-    schedule:
-      interval: "daily"
-    labels:
-      - "type: dependency upgrade"
-  - package-ecosystem: gradle
-    directory: "/"
-    schedule:
-      interval: daily
-    open-pull-requests-limit: 10
-    target-branch: 7.0.x
-    ignore:
-    - dependency-name: com.gradle.build-scan
-      versions:
-      - 3.5.1
-      - "3.6"
+- package-ecosystem: gradle
+  directory: "/"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+  target-branch: 7.3.x
+  labels:
+    - "type: dependency upgrade"
+  ignore:
+    - dependency-name: "*"      
+      update-types: ["version-update:semver-patch", "version-update:semver-minor"]