GitHub CI: macOS-11 jobs skipping port builds, because "11_arm64 builder will build it"

[mascguy (Christopher Nielsen)]

While this behavior is expected on our buildbots, it shouldn't be happening via GitHub CI. Presumably we accidentally included some buildbot-specific logic, when updating the CI scripts?

Please refer to the following job, related to ​PR 12813 - py-crypto dependents: migrate to py-pycryptodome:

​https://github.com/macports/macports-ports/runs/4120375622

2021-11-05T18:08:53.6593810Z Excluding EGSimulation because the 11_arm64 builder will build it
2021-11-05T18:08:56.1083250Z Excluding py-ezpycrypto because the 11_arm64 builder will build it
2021-11-05T18:08:56.2218280Z Excluding py27-ezpycrypto because the 11_arm64 builder will build it
2021-11-05T18:08:56.8454220Z Excluding py-keyczar because the 11_arm64 builder will build it
2021-11-05T18:08:56.9417080Z Excluding py27-keyczar because the 11_arm64 builder will build it
2021-11-05T18:08:57.5910320Z Excluding py-pycryptodome because the 11_arm64 builder will build it
2021-11-05T18:08:58.8871220Z Excluding py-recaptcha because the 11_arm64 builder will build it
2021-11-05T18:08:58.9935390Z Excluding py27-recaptcha because the 11_arm64 builder will build it
2021-11-05T18:08:59.9454970Z Excluding scapy because the 11_arm64 builder will build it
2021-11-05T18:09:00.0774890Z Excluding scapy-devel because the 11_arm64 builder will build it
2021-11-05T18:09:00.7669510Z Excluding volatility because the 11_arm64 builder will build it
2021-11-05T18:09:01.4390790Z Excluding youtube-dl because the 11_arm64 builder will build it
2021-11-05T18:09:01.5454710Z Excluding yt-dlp because the 11_arm64 builder will build it

Full logs from the CI job also attached; filename: pycryptodome-github-ci-macos-11-arm64-skips.log.xz

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #62977.