docs: Remove unactual badges from readme

[o-kopysov]

Pull Request

Description

Remove unactual badges:

• build: non-significant badge.
• doi: stopped to work properly - I can't upload new releases on zenodo website because of space limitation.

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Code cleanup/refactoring
• [X] Documentation update
• [ ] This change requires a documentation update
• [ ] CI system update
• [ ] Test Coverage update

[codecov-commenter]

Codecov Report

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

Project coverage is 93.80%. Comparing base (c1b8577) to head (7f6ca39).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #639 +/- ## ========================================= Coverage 93.80% 93.80% Complexity 634 634 ========================================= Files 52 52 Lines 2178 2178 Branches 254 254 ========================================= Hits 2043 2043 Misses 58 58 Partials 77 77 ```

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