Automate supported versions

Author: WyriHaximus

.github/workflows/helm-charts-test.yaml

@@ -3,6 +3,15 @@ name: "helm-charts/test"
 on: pull_request
 
 jobs:
+  kubernetes-versions:
+    runs-on: ubuntu-latest
+    steps:
+      - id: release
+        uses: actions-matrix/release-matrix-action@v2
+        with:
+          search: "kubernetes"
+    outputs:
+      matrix: ${{ steps.release.outputs.matrix }}
   lint:
     runs-on: ubuntu-latest
     steps:
@@ -15,17 +24,15 @@ jobs:
       - name: Lint charts
         id: lint
         run: ct lint --all --target-branch ${{ github.event.repository.default_branch }}
-
   test:
     runs-on: ubuntu-latest
-    needs: lint
+    needs:
+      - lint
+      - kubernetes-versions
     strategy:
       fail-fast: false
       matrix:
-        k8s:
-          - "1.28"
-          - "1.29"
-          - "1.30"
+        k8s: ${{ fromJson(needs.kubernetes-versions.outputs.matrix).versions }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4