[main] Update dependabot configurations

.github/dependabot.yml

@@ -0,0 +1,48 @@
+version: "2"
+updates:
+    - package-ecosystem: gomod
+      directories:
+        - /
+      schedule:
+        interval: weekly
+      ignore:
+        - dependency-name: knative.dev/*
+        - dependency-name: k8s.io/*
+          update-types:
+            - version-update:semver-major
+            - version-update:semver-minor
+        - dependency-name: github.com/openshift/*
+          update-types:
+            - version-update:semver-major
+            - version-update:semver-minor
+        - dependency-name: sigs.k8s.io/controller-runtime
+          update-types:
+            - version-update:semver-major
+            - version-update:semver-minor
+      target-branch: release-v1.15
+      commit-message:
+        prefix: '[release-v1.15][gomod]'
+      open-pull-requests-limit: 10
+    - package-ecosystem: gomod
+      directories:
+        - /
+      schedule:
+        interval: weekly
+      ignore:
+        - dependency-name: knative.dev/*
+        - dependency-name: k8s.io/*
+          update-types:
+            - version-update:semver-major
+            - version-update:semver-minor
+        - dependency-name: github.com/openshift/*
+          update-types:
+            - version-update:semver-major
+            - version-update:semver-minor
+        - dependency-name: sigs.k8s.io/controller-runtime
+          update-types:
+            - version-update:semver-major
+            - version-update:semver-minor
+      target-branch: release-v1.16
+      commit-message:
+        prefix: '[release-v1.16][gomod]'
+      open-pull-requests-limit: 10

.github/workflows/dependabot-deps.yaml

@@ -0,0 +1,44 @@
+
+name: Dependabot
+
+on:
+  pull_request:
+
+permissions:
+  contents: write
+
+jobs:
+  update-deps:
+    name: Update deps
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.head_ref }}
+          path: ./src/github.com/${{ github.repository }}
+          fetch-depth: 0
+
+      - name: Setup Golang
+        uses: openshift-knative/hack/actions/setup-go@main
+
+      - name: Install yq
+        run: |
+          go install github.com/mikefarah/yq/v3@latest
+
+      - name: Generate files
+        working-directory: ./src/github.com/${{ github.repository }}
+        run: make generate-release
+
+      - name: git push
+        working-directory: ./src/github.com/${{ github.repository }}
+        run: |
+          if ! git diff --exit-code --quiet
+          then
+            git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
+            git config --local user.name "github-actions[bot]"
+            git add .
+            git commit -m "Run generate release"
+            git push
+          fi