fix: github actions versions and warnings

- [x] upgrade github/actions/cache GitHub Action to latest
 - this fixings the following warnings (example list [here](https://github.com/argoproj/gitops-engine/actions/runs/11885468091)):
   - Your workflow is using a version of actions/cache that is scheduled for deprecation, actions/[email protected]. Please update your workflow to use the latest version of actions/cache to avoid interruptions. Learn more: https://github.blog/changelog/2024-09-16-notice-of-upcoming-deprecations-and-changes-in-github-actions-services/
   - The `save-state` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/
   - The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/
- [x] update dependabot config
  - prefix PRs with `chore(deps)`
  - group non major version updates into 1 PR

Signed-off-by: jmeridth <[email protected]>

.github/dependabot.yml

@@ -4,7 +4,23 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    commit-message:
+      prefix: "chore(deps)"
+    groups:
+      dependencies:
+        applies-to: version-updates
+        update-types:
+          - "minor"
+          - "patch"
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
       interval: "daily"
+    commit-message:
+      prefix: "chore(deps)"
+    groups:
+      dependencies:
+        applies-to: version-updates
+        update-types:
+          - "minor"
+          - "patch"

.github/workflows/ci.yaml

@@ -12,23 +12,23 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
-      - uses: actions/cache@v2.1.6
+      - uses: actions/checkout@v4.2.2
+      - uses: actions/cache@v4.1.2
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
-      - uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 # v4.0.0
+      - uses: actions/setup-go@v5.1.0
         with:
           go-version-file: go.mod
       - run: make test
       - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@08e2f20817b15149a52b5b3ebe7de50aff2ba8c5 # v3.4.0
+        uses: golangci/golangci-lint-action@0v6.1.1
         with:
           version:  v1.58.2
           args: --timeout 5m
-      - uses: codecov/codecov-action@v3.1.0
+      - uses: codecov/codecov-action@v5.0.2
         with:
           token: ${{ secrets.CODECOV_TOKEN }} #required
           file: ./coverage.out