Set up workflow for automated version increments in pull-requests

[HannesWell]

Set up for this repository the workflow for automated version increments in pull-requests added via eclipse-platform/eclipse.platform.releng.aggregator#2352

The EF infra team has already added the required PAT of the Platform-bot to this repo as requested via

• Add JDT_BOT_PAT .eclipsefdn#6

Author checklist

• I have thoroughly tested my changes
• The change is following the coding conventions
• I have signed the Eclipse Contributor Agreement (ECA)

[HannesWell]

With the current setup, which is the same as for other Eclipse TLP repositories, the check for merge commits is not executed on PRs anymore that target another branch than master.
I know you actively develop on multiple branches and therefore wonder if that's a problem? If yes, I can update the workflows to restore the previous behavior.

[HannesWell]

With the current setup, which is the same as for other Eclipse TLP repositories, the check for merge commits is not executed on PRs anymore that target another branch than master.

The previous behavior is now preserved exactly as it is.

@iloveeclipse can you please review this?

[jukzi]

lets try it.

[HannesWell]

Looks like it works as desired: #3032 (comment)