ci: test across several k8s versions

Author: pmalek

.github/workflows/tests.yaml

@@ -108,6 +108,13 @@ jobs:
 
   apply:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+        - node_image: kindest/node:v1.32.2@sha256:f226345927d7e348497136874b6d207e0b32cc52154ad8323129352923a3142f
+        - node_image: kindest/node:v1.31.6@sha256:28b7cbb993dfe093c76641a0c95807637213c9109b761f1d422c2400e22b8e87
+        - node_image: kindest/node:v1.30.10@sha256:4de75d0e82481ea846c0ed1de86328d821c1e6a6a91ac37bf804e5313670e507
+
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
@@ -121,6 +128,11 @@ jobs:
 
     - name: Create k8s KinD Cluster
       uses: helm/kind-action@a1b0e391336a6ee6713a0583f8c6240d70863de3 # v1.12.0
+      with:
+        # NOTE: default is 0.26.0 https://github.com/helm/kind-action/blob/a1b0e391336a6ee6713a0583f8c6240d70863de3/kind.sh#L21
+        # so bump this manually
+        version: v0.27.0
+        node_image: ${{ matrix.node_image }}
 
     - name: Verify installing CRDs via kustomize works
       run: make install
@@ -130,6 +142,13 @@ jobs:
 
   CRDs-validation:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+        - node_image: kindest/node:v1.32.2@sha256:f226345927d7e348497136874b6d207e0b32cc52154ad8323129352923a3142f
+        - node_image: kindest/node:v1.31.6@sha256:28b7cbb993dfe093c76641a0c95807637213c9109b761f1d422c2400e22b8e87
+        - node_image: kindest/node:v1.30.10@sha256:4de75d0e82481ea846c0ed1de86328d821c1e6a6a91ac37bf804e5313670e507
+
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
@@ -143,6 +162,11 @@ jobs:
 
     - name: Create k8s KinD Cluster
       uses: helm/kind-action@a1b0e391336a6ee6713a0583f8c6240d70863de3 # v1.12.0
+      with:
+        # NOTE: default is 0.26.0 https://github.com/helm/kind-action/blob/a1b0e391336a6ee6713a0583f8c6240d70863de3/kind.sh#L21
+        # so bump this manually
+        version: v0.27.0
+        node_image: ${{ matrix.node_image }}
 
     - name: Verify installing CRDs via kustomize works
       run: make install