[v0.10] Convert drift e2e tests into integration tests (#2913)

* Convert drift e2e tests into integration tests (#2861)

* Simplify drift correction integration tests

This removes checks on bundle statuses, which are unrelated to drift
correction and already covered in status tests
(`integrationtests/agent/bundle_deployment_status_test.go`).

* Migrate drift correction end-to-end tests

This migrates end-to-end test cases for drift correction to
integration tests, simplifying them and reducing the risk of flakiness.

* Rename `createBundle` as `createBundleDeployment`

That bundle reconciler method creates bundle deployments, not bundles.

* Convert bundle deletion e2e test into integration test

That end-to-end test case was flaky, and could easily be migrated to
integration tests.

* Skip `e2e/drift` in CI workflows

That path no longer exists, therefore `ginkgo` must no longer be called
with it.

.github/workflows/e2e-aks-ci.yml

@@ -137,7 +137,7 @@ jobs:
           FLEET_E2E_NS: fleet-local
         run: |
           export KUBECONFIG="$GITHUB_WORKSPACE/kubeconfig-fleet-ci"
-          ginkgo --github-output --label-filter='!infra-setup' e2e/single-cluster e2e/keep-resources e2e/drift
+          ginkgo --github-output --label-filter='!infra-setup' e2e/single-cluster e2e/keep-resources
       -
         name: Acceptance Tests for Examples
         env:

.github/workflows/e2e-ci.yml

@@ -83,7 +83,7 @@ jobs:
         env:
           FLEET_E2E_NS: fleet-local
         run: |
-          ginkgo --github-output --label-filter='!infra-setup && !sharding' e2e/single-cluster e2e/keep-resources e2e/drift
+          ginkgo --github-output --label-filter='!infra-setup && !sharding' e2e/single-cluster e2e/keep-resources
       -
         name: E2E Sharding/Metrics Tests
         if: ${{ matrix.test_type.name == 'sharding' }}

.github/workflows/e2e-gke-ci.yml

@@ -140,7 +140,7 @@ jobs:
         env:
           FLEET_E2E_NS: fleet-local
         run: |
-          ginkgo --github-output --label-filter='!infra-setup' e2e/single-cluster e2e/keep-resources e2e/drift
+          ginkgo --github-output --label-filter='!infra-setup' e2e/single-cluster e2e/keep-resources
       -
         name: Acceptance Tests for Examples
         env:

.github/workflows/e2e-nightly-ci.yml

@@ -94,7 +94,7 @@ jobs:
           export CI_OCI_CERTS_DIR="$(git rev-parse --show-toplevel)/FleetCI-RootCA"
 
           # 1. Run test cases not needing infra
-          ginkgo --github-output --label-filter='!infra-setup' e2e/single-cluster e2e/keep-resources e2e/drift
+          ginkgo --github-output --label-filter='!infra-setup' e2e/single-cluster e2e/keep-resources
 
           # 2. Run tests for metrics
           ginkgo --github-output e2e/metrics