Pin the manager image stanza; fix stale checklist line

config/manager/kustomization.yaml: commit the images: stanza that
`kustomize edit set image` (run by make deploy, including inside make
test-e2e) writes into this tracked file. It showed up as unexplained
drift twice; committing it once ends that -- the edit is idempotent, so
future deploy/e2e runs produce no diff. The example.com image name is
the e2e suite's placeholder default and gets overridden by IMG= on any
real deploy.

Execution log: the Status checklist's Step 3 line still said "Mock
provider" from before the pivot; a fresh session resuming from the
checklist alone would have been misled.

Co-Authored-By: Claude <noreply@anthropic.com>

config/manager/kustomization.yaml

@@ -1,2 +1,8 @@
 resources:
 - manager.yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+images:
+- name: controller
+  newName: example.com/egress-proxies-operator
+  newTag: v0.0.1