build: update Node and Miner version to v1.30.1-dev in master

[rjan90]

Related Issues

#12480

Proposed Changes

Update Node and Miner version to v1.30.1-dev in master

Checklist

Before you mark the PR ready for review, please make sure that:

• Commits have a clear commit message.
• PR title conforms with contribution conventions
• Update CHANGELOG.md or signal that this change does not need it per contribution conventions
• New features have usage guidelines and / or documentation updates in
  • Lotus Documentation
  • Discussion Tutorials
• Tests exist for new functionality or change in behavior
• CI is green

[BigLep]

Looks good/right to me. The main question for me is checking that we're creating two branches and that we're linking to the changelog files in each of those branches.