Merge bitcoin#28823: ci: remove note re M1 usage

8cbb619 ci: remove note re M1 usage (fanquake)

Pull request description:

  M1 is now available in GitHub CI, but we don't currently have a plan to use it, so remove the comment.

ACKs for top commit:
  maflcko:
    lgtm ACK 8cbb619
  achow101:
    ACK 8cbb619
  hebasto:
    ACK 8cbb619.

Tree-SHA512: 13bbd4ad2358b0df6781031d6bdba456ffe706f30bf273a317ea8031f28276ef5821b5f767e4fb47d444b4e9ad7b8b7f67563927838552d275aca481d0e2fc2f

Author: achow101

.github/workflows/ci.yml

@@ -71,7 +71,7 @@ jobs:
     name: 'macOS 13 native, x86_64, no depends, sqlite only, gui'
     # Use latest image, but hardcode version to avoid silent upgrades (and breaks).
     # See: https://github.com/actions/runner-images#available-images.
-    runs-on: macos-13  # Use M1 once available https://github.com/github/roadmap/issues/528
+    runs-on: macos-13
 
     # No need to run on the read-only mirror, unless it is a PR.
     if: github.repository != 'bitcoin-core/gui' || github.event_name == 'pull_request'