Supertypes should be on separate lines

[diphtongue]

What's done:

• Fixed bug where more than two supertypes should be on separate lines
• Added warning and smoke tests

Closes #1890

[github-actions[bot]]

JUnit Tests (macOS, EnricoMi/publish-unit-test-result-action@v2)

  167 files  +1    167 suites  +1   14m 49s :stopwatch: + 7m 34s 1 446 tests +8  1 407 :white_check_mark: +7  39 :zzz: +1  0 :x: ±0  2 826 runs  +8  2 787 :white_check_mark: +7  39 :zzz: +1  0 :x: ±0 

Results for commit 47ea322b. ± Comparison against base commit 66e03a12.

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

JUnit Tests (Windows, EnricoMi/publish-unit-test-result-action@v2)

  167 files  +1    167 suites  +1   7m 5s :stopwatch: -14s 1 446 tests +8  1 429 :white_check_mark: +8  17 :zzz: ±0  0 :x: ±0  2 826 runs  +8  2 809 :white_check_mark: +8  17 :zzz: ±0  0 :x: ±0 

Results for commit 47ea322b. ± Comparison against base commit 66e03a12.

:recycle: This comment has been updated with latest results.

[codecov[bot]]

Codecov Report

Attention: 22 lines in your changes are missing coverage. Please review.

Comparison is base (66e03a1) 78.26% compared to head (47ea322) 78.19%.

Files	Patch %	Lines
...iktat/ruleset/rules/chapter3/files/NewlinesRule.kt	71.21%	0 Missing and 19 partials :warning:
...m/saveourtool/diktat/ruleset/utils/AstNodeUtils.kt	70.00%	1 Missing and 2 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1902 +/- ## ============================================ - Coverage 78.26% 78.19% -0.08% - Complexity 2478 2492 +14 ============================================ Files 134 134 Lines 8724 8773 +49 Branches 2216 2240 +24 ============================================ + Hits 6828 6860 +32 - Misses 907 908 +1 - Partials 989 1005 +16 ```

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