GHA Migration - build misc (#5346)

Closes https://github.com/paritytech/ci_cd/issues/1017

- Enabled subsystem-benchmarks 100% + adjusted them to publish as
separate job so it can use environment for scope secrets
- Added -v1.* triggers for GHA checks
- Removed remove subkey & polkavm from gitlab

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Co-authored-by: Alexander Samusev <[email protected]>