chore: Improve error message if there is no organization with required name

[bednar]

Closes #424

Proposed Changes

Improved error message for lookup to organization.

Checklist

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

[codecov-commenter]

Codecov Report

Merging #425 (e330919) into master (20c867d) will increase coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #425      +/-   ##
==========================================
+ Coverage   88.05%   88.12%   +0.07%     
==========================================
  Files          38       38              
  Lines        3197     3201       +4     
==========================================
+ Hits         2815     2821       +6     
+ Misses        382      380       -2     

Impacted Files	Coverage Δ
influxdb_client/client/util/helpers.py	100.00% <100.00%> (ø)
influxdb_client/client/util/date_utils.py	96.29% <0.00%> (+7.40%)	⬆️

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[rhajek]

LGTM