Replace `--production` by `--omit=dev`

[swaldmann]

Description

This PR replaces all occurrences of --production in an npm context with --omit=dev.

Currently you get these warnings when deploying MTA projects with the standard npm builder: "npm warn config production Use --omit=dev instead"

The omit option was introduced with npm 8, so it's available in all supported versions.

Checklist

• [ ] Code compiles correctly
• [ ] Relevant tests were added (unit / contract / integration)
• [ ] Relevant logs were added
• [ ] Formatting and linting run locally successfully
• [ ] All tests pass
• [ ] UA review
• [ ] Design is documented
• [ ] Extended the README / documentation, if necessary
• [ ] Open source is approved