Add darwin arm64

[ArturWierzbicki]

Mac arm64 support is experimental (https://github.com/vercel/pkg#targets) so the plugin might have some bugs. Tested locally-built plugin with dashboard previews crawler & panel renderer

CI-built plugin doesn't work because Macos automatically creates/recreates .DS_Store files and it messes up with the signature

[ArturWierzbicki]

I think the problem with .DS_Store files (https://en.wikipedia.org/wiki/.DS_Store) is the last one we need to solve before we can add the darwin-arm64 target.

Lets say we are packaging a plugin with the following structure in CI:

- bestImageRendererPlugin
   - executable
   - someFile.jpg
   - folder/
      - someFile.png

During the build, we are creating a manifest file with the list of all files & their checksums. However, when the built package is installed on an M1 Mac, the OS automagically adds .DS_Store files in every folder:

- bestImageRendererPlugin
   - .DS_Store
   - executable
   - someFile.jpg
   - folder/
      - .DS_Store 
      - someFile.png

I tried creating empty DS_Store files in all the right places in the CI in hopes that the OS wouldn't replace them, but that did not work - they were replaced and the checksum verification failed.

I don't know why this problem occurs only on M1 macs, nor how to deal with it except for explicitly ignoring DS_Store files when creating & verifying the manifest. cc @AgnesToulet

[ArturWierzbicki]

After solving the problem described above with this grafana PR I ran into another one - binary signing requirement

Looks like we will need to spin up a mac 😅

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