[ci] Refactor testing logic

* Simplify test discovery logic in workflow.
* Delete Clickhouse after successful test.
* Separate two k8s tests into separate jobs.

Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>

.github/workflows/pull-requests.yaml

@@ -264,8 +264,7 @@ jobs:
       - uses: actions/checkout@v4
       - id: set
         run: |
-          apps=$(find hack/e2e-apps -maxdepth 1 -mindepth 1 -name '*.bats' | \
-            awk -F/ '{sub(/\..+/, "", $NF); print $NF}' | jq -R . | jq -cs .)
+          apps=$(ls hack/e2e-apps/*.bats | cut -f3 -d/ | cut -f1 -d. | jq -R | jq -cs)
           echo "matrix={\"app\":$apps}" >> "$GITHUB_OUTPUT"
 
   test_apps:

hack/e2e-apps/clickhouse.bats

@@ -38,4 +38,5 @@ EOF
   timeout 100 sh -ec "until kubectl -n tenant-test get svc chi-clickhouse-$name-clickhouse-0-0 -o jsonpath='{.spec.ports[*].port}' | grep -q '9000 8123 9009'; do sleep 10; done"
   timeout 80 sh -ec "until kubectl -n tenant-test get sts chi-clickhouse-$name-clickhouse-0-1 ; do sleep 10; done"
   kubectl -n tenant-test wait statefulset.apps/chi-clickhouse-$name-clickhouse-0-1 --timeout=140s --for=jsonpath='{.status.replicas}'=1
+  kubectl -n tenant-test delete clickhouse $name
 }

hack/e2e-apps/kubernetes-latest.bats

@@ -0,0 +1,6 @@
+#!/usr/bin/env bats
+
+@test "Create a tenant Kubernetes control plane with latest version" {
+  . hack/e2e-apps/run-kubernetes.sh
+  run_kubernetes_test 'keys | sort_by(.) | .[-1]' 'test-latest-version' '59991'
+}

hack/e2e-apps/kubernetes-previous.bats

@@ -0,0 +1,6 @@
+#!/usr/bin/env bats
+
+@test "Create a tenant Kubernetes control plane with previous version" {
+  . hack/e2e-apps/run-kubernetes.sh
+  run_kubernetes_test 'keys | sort_by(.) | .[-2]' 'test-previous-version' '59992'
+}

hack/e2e-apps/run-kubernetes.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bats
-
 run_kubernetes_test() {
     local version_expr="$1"
     local test_name="$2"
@@ -104,10 +102,3 @@ EOF
   kubectl -n tenant-test delete kuberneteses.apps.cozystack.io $test_name
 
 }
-
-@test "Create a tenant Kubernetes control plane with latest version" {
-  run_kubernetes_test 'keys | sort_by(.) | .[-1]' 'test-latest-version' '59991'
-}
-@test "Create a tenant Kubernetes control plane with previous version" {
-  run_kubernetes_test 'keys | sort_by(.) | .[-2]' 'test-previous-version' '59992'
-}