feat: possibility to precise which config name to load when loading config from file

[aaalloc]

Closes #585

Proposed Changes

Possibility to precise which config name we want when loading from_config_file

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• pytest tests completes successfully
• Commit messages are conventional
• Sign CLA (if not already signed)

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (77cac49) 90.30% compared to head (3577c58) 90.30%.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #586   +/-   ##
=======================================
  Coverage   90.30%   90.30%           
=======================================
  Files          39       39           
  Lines        3455     3456    +1     
=======================================
+ Hits         3120     3121    +1     
  Misses        335      335           

Impacted Files	Coverage Δ
influxdb_client/client/influxdb_client.py	98.78% <ø> (ø)
influxdb_client/client/influxdb_client_async.py	88.52% <ø> (ø)
influxdb_client/client/_base.py	97.72% <100.00%> (+<0.01%)	⬆️

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[bednar]

Thanks for your PR 👍
There are a few requirements that must be be satisfy before we accept the PR:

1. Please update CHANGELOG.md
2. Please satisfy following requirements:

[bednar]

Thanks again for your PR 👍

Please change implementation to use kwargs instead of new argument:

[bednar]

Thanks again for your PR, everything looks good 🚀