Add reusable workflow for common code

[ekharkunov]

• Add reusable workflow to avoid code duplication
• Add arm64-macos platform to list of PLATFORMS
• Add fail-fast: false to enable complete build of all extension. I guess it's better to collect all issues with extension compiling at once rather than fix and compile one-by-one.
• Add dependabot configuration to follow github actions update
• Update github actions version to eliminate warning about old nodejs runtime
• Pin gh actions version (according to advise from https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-third-party-actions)

Example how it runs (without arm64-macos) https://github.com/ekharkunov/test-sdk/actions/runs/7651914447/job/20850637534

P.S. Warning about homoluctus/slatify is still presented. I'll fix it in separate PR.

[AGulev]

LGTM
but it would be nice if @JCash take a look as well

[JCash]

Nice!

[JCash]

Note to others: this is so we don't choke the server.