fix: packaging type info

[alespour]

Closes #622

Proposed Changes

This adds PEP 561 distributing and packaging type information, which specifically resolves issue with MyPy error: Skipping analyzing "influxdb_client": module is installed, but missing library stubs or py.typed marker [import-untyped]

The required marker really is just an empty file py.typed. The same fix has been applied in v3 client.

Checklist

• [x] CHANGELOG.md updated
• [x] Rebased/mergeable
• [x] A test has been added if appropriate
• [x] pytest tests completes successfully
• [x] Commit messages are conventional

[codecov-commenter]

Codecov Report

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

Project coverage is 90.42%. Comparing base (08acb17) to head (e2dd513).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #654 +/- ## ======================================= Coverage 90.42% 90.42% ======================================= Files 39 39 Lines 3510 3510 ======================================= Hits 3174 3174 Misses 336 336 ```

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[max-accenta]

Hi, for some reason installing the package with the latest version (1.43) from pip does not install the py.typed file. Steps to reproduce:

python -m venv venv
. venv/bin/activate
python -m pip install influxdb_client
ls -l venv/lib/python3.11/site-packages/influxdb_client | grep typed
# Nothing

Installing directly from the repo works though (pip install git+https://github.com/influxdata/influxdb-client-python). Thanks