This test ensures that the controller properly handles multiple
$patch: delete directives in strategic merge patches, which was
causing panic errors in kustomize v5.6.0 but is now fixed in v5.7.0.
The test includes two scenarios:
- Multiple delete directives in a single patch (the main fix)
- Multiple delete directives in separate patches (previously a workaround)
Signed-off-by: cappyzawa <cappyzawa@gmail.com>