Improve type annotations in core functions

[achimnol]

refs #847

• Apply from __future__ import annotations.
• Explicitly type most core APIs (containers, images, logs).
  • Add overloaded type definitions to DockerContainer.log(), DockerContainer.stats() like DockerImage.pull().
  • Introduce JSONObject, JSONList, JSONValue for API arguments, but not in the return values due to the type variance issue. In the future, it would be better to adopt explicitly typed DTOs.
  • Clearly define the types for the filters arg used in many places.
• Explicitly type most test codes.
• Fix several hidden bugs or missing handling of corner cases via improved type annotations.
• Drop compatibility codes for Python 3.7 or older versions.
• Improve the flaky Windows tests in CI.
  • The official "python:3.12" (or "python:latest") image for the windows/amd64 platform weighs more than 2 GiB, while the alpine version is less than 20 MiB. This makes it to time out in high probability if pulled in pytest, as the pull takes more than 10 minutes. Unfortunately, there is no slim variants for the windows/amd64 platform.
  • Split out and run the docker pull step explicitly before running pytest in CI, so that we can observe the pulling progress and decouple the timeout from pytest.
  • Tried to apply Docker image caching, but found that the bottleneck of GitHub Actions is disk I/O. docker load and docker save simply takes a tooooo long time, so it's meaningless to improve the download speed by caching.

[!NOTE]

861 has introduced explicit cancellation of utils._AsyncCM, but this PR removes it completely and replaces it with the intrinsic async context managers which provides better exception handling as "originally" expected.

Checklist

• [x] I think the code is well written
• [x] Unit tests for the changes exist
• [x] If you provide code modification, please add yourself to CONTRIBUTORS.txt
• [x] 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[bot]]

Codecov Report

Attention: Patch coverage is 84.89209% with 21 lines in your changes missing coverage. Please review.

Project coverage is 81.14%. Comparing base (7b3d86f) to head (d6ccbe0).

Files	Patch %	Lines
aiodocker/logs.py	11.11%	8 Missing :warning:
aiodocker/docker.py	69.56%	4 Missing and 3 partials :warning:
aiodocker/containers.py	85.00%	1 Missing and 5 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #850 +/- ## ========================================== - Coverage 81.25% 81.14% -0.12% ========================================== Files 24 24 Lines 1382 1421 +39 Branches 245 253 +8 ========================================== + Hits 1123 1153 +30 - Misses 173 175 +2 - Partials 86 93 +7 ```

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[achimnol]

Currently the Windows test in CI seems to be broken in an unexpected way. In my local Windows box (standard Docker Desktop + Python 3.12.4 from chocolatey), it works well with a minor glitch: