fix(ci): disable Codecov wait_for_ci to unblock PR comments

Codecov's default wait_for_ci: true causes it to wait for ALL
non-Codecov commit statuses to complete before posting PR comments.
Prow e2e tests create pending statuses that never resolve (waiting
for pipeline conditions), blocking Codecov notifications indefinitely.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: bryan-cox

codecov.yml

@@ -1,5 +1,7 @@
 codecov:
   branch: main
+  notify:
+    wait_for_ci: false
 
 comment:
   layout: "condensed_header, diff, flags, components"