docs: READMEs still reference pre-consolidation repos #54

Problem

Several READMEs still point readers at pre-consolidation repos:

• cleanup-pr/README.md (line 3): "…using the bcgov/action-oc-runner action" (cleanup-pr uses $/oc-runner).
• route-tls/README.md (lines 7 and 61): says non-dry-run jobs use bcgov/action-oc-runner (route-tls uses $/oc-runner).
• deployer/README.md (lines 2-4): Issues, PRs and License badges for bcgov/action-deployer-openshift.
• deployer/README.md (~line 227): a deprecation note linking bcgov/action-oc-runner.

Found while removing old-repo dependencies in #48, which only changed code refs.

Done when

• These READMEs name bcgov/actions-openshift / oc-runner instead, and the badges point at this repo or are removed.