Release Signer Alongside Node

[BowTiedDevOps]

The aim of this PR is to create a signer release every time there is a core release happening, with the tag set as <core_release>.0.

This PR also moves most of the release workflow out of stacks-core and into actions repository such that on subsequent changes to the release process, we can easier adjust the workflows without the need of as many stacks-core pull requests.

I've also implemented latest docker image tags on non-RC releases and removed the signer- word from the signer version tag as it was redundant.

Note: The Actions PR will have to be merged before this can be merged, as it references composite actions that are not existent in the current flow but in the one proposed by that PR.

Example workflows (tests commented out for quicker workflow runs, but they are unaffected by these changes):

• Node Release (built both 4.0.0.0.0 and signer-4.0.0.0.0.0 releases): https://github.com/BowTiedDevOps/stacks-core/actions/runs/11963198211
• Standalone Signer Release (built signer-4.0.0.0.0.1 release): https://github.com/BowTiedDevOps/stacks-core/actions/runs/11963781406
• Standalone Signer RC Release (built signer-4.0.0.0.0.2-rc1 release, used to test that docker image latest doesn't update on RC builds): https://github.com/BowTiedDevOps/stacks-core/actions/runs/11963969804

Useful Links:

• Releases Page: https://github.com/BowTiedDevOps/stacks-core/releases
• Stacks Core Docker Images: https://hub.docker.com/r/bowtieddevops/stacks-core/tags
• Stacks Signer Docker Images: https://hub.docker.com/r/bowtieddevops/stacks-signer/tags

Binaries Version Check:

• Node Release

  $ ./stacks-node version
  INFO [1732236056.645827] [testnet/stacks-node/src/main.rs:283] [main] stacks-node 4.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, 
  release build, linux [x86_64])
  stacks-node 4.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, release build, linux [x86_64])
  
  $ ./stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, release build, linux [x86_64])

• Signer Release Built Alongside Node

  $ ./stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, release build, linux [x86_64])

• Standalone Signer Release:

  $ ./stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.1 (release/signer-4.0.0.0.0.1:eb8aaf7, release build, linux [x86_64])

• Standalone Signer Release (RC Build):

  $ ./stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.2-rc1 (release/signer-4.0.0.0.0.2-rc1:eb8aaf7, release build, linux [x86_64])

Docker Images Version Check:

• Node

  $ docker run bowtieddevops/stacks-core:4.0.0.0.0 stacks-node version
  stacks-node 4.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, release build, linux [x86_64])
  INFO [1732236172.154954] [testnet/stacks-node/src/main.rs:283] [main] stacks-node 4.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, 
  release build, linux [x86_64])
  
  $ docker run bowtieddevops/stacks-core:latest stacks-node version
  INFO [1732236216.647136] [testnet/stacks-node/src/main.rs:283] [main] stacks-node 4.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, 
  release build, linux [x86_64])
  stacks-node 4.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, release build, linux [x86_64])

• Signer

  $ docker run bowtieddevops/stacks-signer:4.0.0.0.0.0 stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.0 (release/4.0.0.0.0:eb8aaf7, release build, linux [x86_64])
  
  $ docker run bowtieddevops/stacks-signer:4.0.0.0.0.1 stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.1 (release/signer-4.0.0.0.0.1:eb8aaf7, release build, linux [x86_64])
  
  $ docker run bowtieddevops/stacks-signer:4.0.0.0.0.2-rc1 stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.2-rc1 (release/signer-4.0.0.0.0.2-rc1:eb8aaf7, release build, linux [x86_64])
  
  $ docker run bowtieddevops/stacks-signer:latest stacks-signer --version
  stacks-signer stacks-signer 4.0.0.0.0.1 (release/signer-4.0.0.0.0.1:eb8aaf7, release build, linux [x86_64])