AEA-704 Add script to check package dependencies

[marcofavorito]

Proposed changes

Add script to check package dependencies.

Fixes

Fixes #1213

Types of changes

What types of changes does your code introduce to agents-aea?
Put an x in the boxes that apply

• Bugfix (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)

Checklist

Put an x in the boxes that apply.

• I have read the CONTRIBUTING doc
• I am making a pull request against the develop branch (left side). Also you should start your branch off our develop.
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have checked that code coverage does not decrease.
• I have checked that the documentation about the aea cli tool works
• I have added necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules

Further comments

[codecov-commenter]

Codecov Report

Merging #1476 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1476   +/-   ##
========================================
  Coverage    89.57%   89.57%           
========================================
  Files          242      242           
  Lines        17183    17183           
========================================
  Hits         15391    15391           
  Misses        1792     1792           

Flag	Coverage Δ
#unittests	89.57% <ø> (ø)

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[DavidMinarsch]

LGTM, please include in common checks of CI

[DavidMinarsch]

LGTM