ci: update GitHub Actions versions for checkout and setup-helm

Updates the versions of widely used GitHub Actions across multiple
workflow files:
- actions/checkout updated from v4 to v6
- azure/setup-helm updated from v4 to v5

These updates ensure the CI/CD pipelines use the latest stable versions
of these actions for improved performance and security.

Signed-off-by: Ivan P <2119240+i5okie@users.noreply.github.com>

Author: i5okie

.github/actions/showcase-helm-lint/action.yml

@@ -22,10 +22,10 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       if: ${{ inputs.skip_checkout != 'true' }}
 
-    - uses: azure/setup-helm@v4
+    - uses: azure/setup-helm@v5
       if: ${{ inputs.skip_helm_install != 'true' }}
       with:
         version: ${{ inputs.helm_version }}

.github/actions/showcase-setup-oc-helm/action.yml

@@ -8,6 +8,6 @@ runs:
       with:
         oc: '4.15.63'
 
-    - uses: azure/setup-helm@v4
+    - uses: azure/setup-helm@v5
       with:
         version: v3.16.3

.github/workflows/continuous-integration.yml

@@ -21,7 +21,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup NodeJS
         uses: ./.github/actions/setup-node
@@ -40,7 +40,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup NodeJS
         uses: ./.github/actions/setup-node
@@ -59,7 +59,7 @@ jobs:
     timeout-minutes: 45
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup NodeJS
         uses: ./.github/actions/setup-node

.github/workflows/deploy-showcase-dev.yaml

@@ -66,7 +66,7 @@ jobs:
       packages: write
       id-token: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/showcase-build-server
         with:
           image: ${{ env.SHOWCASE_SERVER_IMAGE }}
@@ -83,7 +83,7 @@ jobs:
       packages: write
       id-token: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/showcase-build-frontend
         with:
           image: ${{ env.SHOWCASE_FRONTEND_IMAGE }}
@@ -109,7 +109,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Verify OpenShift token is configured
         env:

.github/workflows/deploy-showcase-pr.yaml

@@ -77,7 +77,7 @@ jobs:
       packages: write
       id-token: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/showcase-build-server
         with:
           image: ${{ env.SHOWCASE_SERVER_IMAGE }}
@@ -95,7 +95,7 @@ jobs:
       packages: write
       id-token: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/showcase-build-frontend
         with:
           image: ${{ env.SHOWCASE_FRONTEND_IMAGE }}
@@ -112,7 +112,7 @@ jobs:
     # Job-level `if` cannot use `secrets` (GitHub restriction). Verify OpenShift secrets in-step.
     if: ${{ always() && needs.ready.outputs.deploy == 'true' && needs.build_server.result == 'success' && needs.build_frontend.result == 'success' }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Verify OpenShift secrets for deploy
         env:
@@ -231,7 +231,7 @@ jobs:
     needs: [ready, deploy]
     if: ${{ always() && needs.ready.outputs.deploy == 'true' && needs.deploy.result == 'success' }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: peter-evans/find-comment@v3
         id: fc

.github/workflows/helm-lint-showcase.yaml

@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # Local composite actions require the repo on disk before `uses: ./.github/actions/...` resolves.
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: ./.github/actions/showcase-helm-lint
         with:

.github/workflows/helm-publish-showcase.yaml

@@ -23,7 +23,7 @@ jobs:
     name: Package and push to ghcr.io (OCI)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: ./.github/actions/showcase-helm-lint
         with:
@@ -41,7 +41,7 @@ jobs:
           helm package . --destination "$GITHUB_WORKSPACE/dist"
 
       - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}

.github/workflows/on_pr_opened.yaml

@@ -39,7 +39,7 @@ jobs:
       DOCKER_BUILDKIT: '1'
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Build server image
         run: docker build -f server/Dockerfile .

.github/workflows/undeploy-showcase-pr.yaml

@@ -31,7 +31,7 @@ jobs:
     # Job-level `if` cannot use `secrets`. Skip uninstall steps when secrets are unset (notice only).
     if: github.repository_owner == 'bcgov'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - id: openshift
         name: Preflight OpenShift secrets