Upgrade azure/setup-helm GitHub Action from 3 to 4 version (#169)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -72,7 +72,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: azure/setup-helm@v3
+      - uses: azure/setup-helm@v4
 
       - run: make helm.lint chart=${{ matrix.chart }}
 
@@ -355,7 +355,7 @@ jobs:
 
       - uses: actions/checkout@v4
         if: ${{ steps.skip.outputs.no == 'true' }}
-      - uses: azure/setup-helm@v3
+      - uses: azure/setup-helm@v4
         if: ${{ steps.skip.outputs.no == 'true' }}
 
       - name: Parse semver versions from Git tag