[MINOR] Put mvn config files together

[daragu]

Why are the changes needed?

Minor.

Brief change log

Put mvn config files together.

How was this patch tested?

• [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

• [ ] Add screenshots for manual tests if appropriate

• [x] Run test locally before making a pull request

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

[xleoken]

LGTM

[daragu]

@daragu Thanks for the contribution!

It seems that the files were not moved to the tools/maven folder. You may want to have a check.

Thanks.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 32.76%. Comparing base (890640b) to head (28f357b). Report is 7 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2891 +/- ## ========================================= Coverage 32.76% 32.76% Complexity 3821 3821 ========================================= Files 558 558 Lines 46295 46296 +1 Branches 6175 6175 ========================================= + Hits 15170 15171 +1 Misses 29931 29931 Partials 1194 1194 ``` | [Flag](https://app.codecov.io/gh/apache/amoro/pull/2891/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache) | Coverage Δ | | |---|---|---| | [core](https://app.codecov.io/gh/apache/amoro/pull/2891/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache) | `32.76% <ø> (+<0.01%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#carryforward-flags-in-the-pull-request-comment) to find out more.

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