Resolves #886

Changes

• Added packages lock for the Nethermind.Runner project
• Hardcoded Docker files image tags
  This requires us to update .NET version each time we need to use the latest version of it. This is the only change that brings some inconvenience. May be automated later.
• Added scripts to build a Debian package as requested by Flashbots
• Updated build-related parameters
• Removed version requirement from the release workflow -- now handled automatically
• Moved the build logic to a dedicated Dockerfile
• Updated build workflows to handle the changes above

Types of changes

What types of changes does your code introduce?

• Bugfix (a non-breaking change that fixes an issue)
• New feature (a non-breaking change that adds functionality)
• Breaking change (a change that causes existing functionality not to work as expected)
• Optimization
• Refactoring
• Documentation update
• Build-related changes
• Other: Description

Testing

Requires testing

• Yes
• No

If yes, did you write tests?

• Yes
• No

Notes on testing

Needs more manual testing

Documentation

Requires documentation update

• Yes
• No

NethermindEth/docs#310