Support item access to DockerVolume

[james-emerton]

Implement kwargs and __getitem__() as per DockerContainer

What do these changes do?

This allows the user to access properties of a volume directly from the DockerVolume instance.

Are there changes in behavior for the user?

Arguments to DockerVolume constructor have changed. I have added support for a positional name argument.

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
  • The format is <Name> <Surname>.
  • Please keep alphabetical order, the file is sorted by names.
• Add a new news fragment into the changes folder
  • name it <issue_id>.<type> for example (588.bug)
  • if you don't have an issue_id change it to the pr id after creating the pr
  • ensure type is one of the following:
    • .feature: Signifying a new feature.
    • .bugfix: Signifying a bug fix.
    • .doc: Signifying a documentation improvement.
    • .removal: Signifying a deprecation or removal of public API.
    • .misc: A ticket has been closed, but it is not of interest to users.
  • Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."

[codecov]

Codecov Report

❌ Patch coverage is 91.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 75.13%. Comparing base (178d8a0) to head (a7d55fd).

Files with missing lines	Patch %	Lines
aiodocker/volumes.py	91.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1044      +/-   ##
==========================================
+ Coverage   75.11%   75.13%   +0.02%     
==========================================
  Files          26       26              
  Lines        1965     1971       +6     
  Branches      272      272              
==========================================
+ Hits         1476     1481       +5     
- Misses        406      407       +1     
  Partials       83       83              

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[james-emerton]

The attribute access support in DockerContainer; upon which this change is modelled, is not specifically documented. I'm open to documenting it, but I'm not sure exactly what form that should take.