workflows: migrate run-k8s-tests-on-garm to free runners

Switched to Github managed runners. The instance_type parameter was
removed and K8S_TEST_HOST_TYPE is set to "all" which combine the
tests of "small" and "normal". This way it will reduze to half of
the jobs.

See: #9940
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>

.github/workflows/run-k8s-tests-on-garm.yaml

@@ -1,4 +1,4 @@
-name: CI | Run kubernetes tests on GARM
+name: CI | Run kubernetes tests
 on:
   workflow_call:
     inputs:
@@ -38,13 +38,7 @@ jobs:
         k8s:
           - k3s
         instance:
-          - garm-ubuntu-2004
-          - garm-ubuntu-2004-smaller
-        include:
-          - instance: garm-ubuntu-2004
-            instance-type: normal
-          - instance: garm-ubuntu-2004-smaller
-            instance-type: small
+          - ubuntu-22.04
     runs-on: ${{ matrix.instance }}
     env:
       DOCKER_REGISTRY: ${{ inputs.registry }}
@@ -55,7 +49,7 @@ jobs:
       KUBERNETES: ${{ matrix.k8s }}
       SNAPSHOTTER: ${{ matrix.snapshotter }}
       USING_NFD: "false"
-      K8S_TEST_HOST_TYPE: ${{ matrix.instance-type }}
+      K8S_TEST_HOST_TYPE: all
     steps:
       - uses: actions/checkout@v4
         with:
@@ -76,7 +70,7 @@ jobs:
 
       - name: Deploy Kata
         timeout-minutes: 10
-        run: bash tests/integration/kubernetes/gha-run.sh deploy-kata-garm
+        run: bash tests/integration/kubernetes/gha-run.sh deploy-kata
 
       - name: Install `bats`
         run: bash tests/integration/kubernetes/gha-run.sh install-bats
@@ -93,10 +87,10 @@ jobs:
       - name: Archive artifacts ${{ matrix.vmm }}
         uses: actions/upload-artifact@v4
         with:
-          name: k8s-tests-garm-${{ matrix.vmm }}-${{ matrix.snapshotter }}-${{ matrix.k8s }}-${{ matrix.instance }}-${{ inputs.tag }}
+          name: k8s-tests-${{ matrix.vmm }}-${{ matrix.snapshotter }}-${{ matrix.k8s }}-${{ matrix.instance }}-${{ inputs.tag }}
           path: /tmp/artifacts
           retention-days: 1
 
       - name: Delete kata-deploy
         if: always()
-        run: bash tests/integration/kubernetes/gha-run.sh cleanup-garm
+        run: bash tests/integration/kubernetes/gha-run.sh cleanup