Bump tiler for separate M1 macOS goldens + update Cirrus to use M1 Macs

[DanTup]

This updates https://github.com/DanTup/tiler to a version that has separate golden images for macOS Intel and macOS M1 because the produces images are not identical (see flutter/flutter#118258 (comment)).

The change: DanTup/tiler@3cb0cad#diff-e3add028a0a83d042c0fbf2778df8b172734500140479f80f48354c8373894f9

It also switches Cirrus to M1 Macs (essentially #204) because the old Intel Mac bots are not available and fail immediately.

Fixes flutter/flutter#118258.

Pre-launch Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I read the Tree Hygiene wiki page, which explains my responsibilities.
• I read the Flutter Style Guide recently, and have followed its advice.
• I signed the CLA.
• I listed at least one issue that this PR fixes in the description above.
• I updated/added relevant documentation (doc comments with ///).
• I added new tests to check the change I am making, or this PR is test-exempt.
• All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel on Discord.

[christopherfujino]

LGTM

[DanTup]

Thanks!