chore(deps): update actions/cache action to v6 (#663)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -224,7 +224,7 @@ jobs:
       # Lint API
       -
         name: PHP CS Fixer Cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: api/.php-cs-fixer.cache
           key: ${{ runner.OS }}-phpcsfixer-${{ github.sha }}
@@ -259,7 +259,7 @@ jobs:
           version: latest
       -
         name: Cache PNPM
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ env.PNPM_HOME }}
           key: ${{ runner.os }}-pnpm-${{ github.run_id }}
@@ -277,7 +277,7 @@ jobs:
       # Lint HELM
       -
         name: Cache Helm Dependencies
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: helm/api-platform/charts/
           key: ${{ runner.os }}-helm-dependencies-${{ github.run_id }}

.github/workflows/deploy.yml

@@ -79,7 +79,7 @@ jobs:
           gcloud container clusters get-credentials ${{ inputs.gke-cluster }} --zone ${{ inputs.gke-zone }}
       -
         name: Cache Helm Dependencies
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: helm/api-platform/charts/
           key: ${{ runner.os }}-helm-dependencies-${{ github.run_id }}

.github/workflows/security.yml

@@ -62,7 +62,7 @@ jobs:
         run: docker pull europe-west1-docker.pkg.dev/${{ secrets.GKE_PROJECT }}/${{ secrets.GKE_PROJECT }}/${{ matrix.image }}:latest
       -
         name: Cache Trivy
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: .trivy
           key: ${{ runner.os }}-trivy-${{ github.run_id }}

.github/workflows/upgrade-api-platform.yml

@@ -36,7 +36,7 @@ jobs:
         run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
       -
         name: Cache Dependencies
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}