analyzer version bump to `>=4.4.0 <6.2.0`

[Hasilt]

Describe the changes proposed in this Pull Request.

If the PR fixes a specific issue, reference the issue with Fixes #. Fixes #929, #928

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Pull Request Checklist

• [x] If the changes are being made to code, ensure the version in pubspec.yaml is updated.
• [x] Increment the major/minor/patch/patch-count, depending on the complexity of change
• [x] Add the necessary unit tests to ensure the coverage does not drop
• [x] Update the Changelog to include all changes made in this PR, organized by version
• [x] Run the melo run set_version command from the root directory
• [x] Include the necessary reviewers for the PR
• [x] Update the docs if there are any API changes or additions to functionality

[davidmartos96]

Since there won't be breaking changes until analyzer 7.0.0, only fixes and deprecations, I'd say we could have <7.0.0 instead.

[codecov[bot]]

Codecov Report

Merging #930 (3cae66d) into master (6e6378c) will increase coverage by 1.00%. Report is 4 commits behind head on master. The diff coverage is n/a.

@@             Coverage Diff             @@
##           master      #930      +/-   ##
===========================================
+ Coverage   98.99%   100.00%   +1.00%     
===========================================
  Files          56         5      -51     
  Lines        1987        97    -1890     
===========================================
- Hits         1967        97    -1870     
+ Misses         20         0      -20     

Flag	Coverage Δ
flutter_mobx	100.00% <ø> (ø)
mobx	?
mobx_codegen	?

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see 51 files with indirect coverage changes

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