[main] Update dependabot configurations

Author: serverless-qe

.github/dependabot.yml

@@ -1,14 +1,5 @@
 version: 2
 updates:
-    - package-ecosystem: github-actions
-      directories:
-        - /
-      schedule:
-        interval: weekly
-      target-branch: release-v1.15
-      commit-message:
-        prefix: '[release-v1.15][github-actions]'
-      open-pull-requests-limit: 0
     - package-ecosystem: gomod
       directories:
         - /
@@ -55,15 +46,6 @@ updates:
       commit-message:
         prefix: '[release-v1.15][gomod]'
       open-pull-requests-limit: 10
-    - package-ecosystem: github-actions
-      directories:
-        - /
-      schedule:
-        interval: weekly
-      target-branch: release-v1.16
-      commit-message:
-        prefix: '[release-v1.16][github-actions]'
-      open-pull-requests-limit: 0
     - package-ecosystem: gomod
       directories:
         - /
@@ -110,15 +92,6 @@ updates:
       commit-message:
         prefix: '[release-v1.16][gomod]'
       open-pull-requests-limit: 10
-    - package-ecosystem: github-actions
-      directories:
-        - /
-      schedule:
-        interval: weekly
-      target-branch: release-v1.17
-      commit-message:
-        prefix: '[release-v1.17][github-actions]'
-      open-pull-requests-limit: 0
     - package-ecosystem: gomod
       directories:
         - /
@@ -165,15 +138,6 @@ updates:
       commit-message:
         prefix: '[release-v1.17][gomod]'
       open-pull-requests-limit: 10
-    - package-ecosystem: github-actions
-      directories:
-        - /
-      schedule:
-        interval: weekly
-      target-branch: release-v1.21
-      commit-message:
-        prefix: '[release-v1.21][github-actions]'
-      open-pull-requests-limit: 0
     - package-ecosystem: gomod
       directories:
         - /

.github/workflows/dependabot-deps.yaml

@@ -14,7 +14,7 @@ jobs:
     if: ${{ github.actor == 'dependabot[bot]' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}
           path: ./src/github.com/${{ github.repository }}