[Enhancement] Create a PR for merging 3.x into main

[lprimak]

Search before asking

• I had searched in the issues and found no similar issues.

Enhancement Request

Prepare PR for merging 3.x into main

• Dependabot: introduce groups for maven for main
• Dependabot: remove 1.x and 2.x dependency updates
• Create the actual PR
• Check / squash commits in 3.x branch

Describe the solution you'd like

N/A

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[lprimak]

Not sure why I created this. Closing