Add release-0.12 to dependabot

* Remove the skip for k8s.io/code-generator in 0.11, we don't need it
  anymore.
* Add a block for release-0.12 updates.

Author: EmilienM

.github/dependabot.yml

@@ -50,6 +50,57 @@ updates:
     - "area/dependency"
     - "ok-to-test"
 ## main branch config ends here
+## release-0.12 branch config starts here
+# github-actions
+- directory: "/"
+  package-ecosystem: "github-actions"
+  schedule:
+    interval: "weekly"
+    day: "monday"
+  target-branch: release-0.12
+  groups:
+    all-github-actions:
+      patterns: [ "*" ]
+  commit-message:
+    prefix: ":seedling:"
+    include: scope
+  labels:
+  - "area/dependency"
+  - "ok-to-test"
+# Go directories
+- directories:
+  - "/"
+  - "/hack/tools"
+  package-ecosystem: "gomod"
+  schedule:
+    interval: "weekly"
+    day: "monday"
+  target-branch: release-0.12
+  groups:
+    all-go-mod-patch-and-minor:
+      patterns: [ "*" ]
+      update-types: [ "patch", "minor" ]
+  commit-message:
+    prefix: ":seedling:"
+    include: scope
+  ignore:
+  # Ignore CAPI major and minor bumps
+  - dependency-name: "sigs.k8s.io/cluster-api*"
+    update-types: ["version-update:semver-major", "version-update:semver-minor"]
+  # Ignore controller-runtime major and minor bumps as its upgraded manually.
+  - dependency-name: "sigs.k8s.io/controller-runtime"
+    update-types: ["version-update:semver-major", "version-update:semver-minor"]
+  # Ignore k8s major and minor bumps and its transitives modules
+  - dependency-name: "k8s.io/*"
+    update-types: ["version-update:semver-major", "version-update:semver-minor"]
+  - dependency-name: "sigs.k8s.io/controller-tools"
+    update-types: ["version-update:semver-major", "version-update:semver-minor"]
+  # We will need k8s v0.31.3 to bump structured-merge-diff to v4.4.2 (check git history for details).
+  - dependency-name: "sigs.k8s.io/structured-merge-diff/*"
+  labels:
+    - "area/dependency"
+    - "ok-to-test"
+## release-0.12 branch config ends here
 ## release-0.11 branch config starts here
 # github-actions
 - directory: "/"
@@ -98,10 +149,6 @@ updates:
     update-types: ["version-update:semver-major", "version-update:semver-minor"]
   # We will need k8s v0.31.3 to bump structured-merge-diff to v4.4.2 (check git history for details).
   - dependency-name: "sigs.k8s.io/structured-merge-diff/*"
-  # Newest code-generator requires k8s api minor version (to v0.31.x) which we don't want at this point
-  # https://github.com/kubernetes/code-generator/commit/3dab3dd1438bd944bd9ae050ec5e6fe6750ad994
-  - dependency-name: "k8s.io/code-generator"
-    update-types: ["version-update:semver-major", "version-update:semver-minor"]
   labels:
     - "area/dependency"
     - "ok-to-test"