feat: Authorization header is not forwarded when redirect leads to a different domain

[bednar]

Proposed Changes

1. Authorization header is not forwarded when redirect leads to a different domain
2. Fix redirect location
3. Add documentation how to configure proxy

Checklist

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

[codecov-commenter]

Codecov Report

Merging #89 (fd1d882) into master (346f213) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head fd1d882 differs from pull request most recent head 86e5077. Consider uploading reports for the commit 86e5077 to get more accurate results

@@           Coverage Diff           @@
##           master      #89   +/-   ##
=======================================
  Coverage   98.98%   98.99%           
=======================================
  Files          16       16           
  Lines         788      793    +5     
=======================================
+ Hits          780      785    +5     
  Misses          8        8           

Impacted Files	Coverage Δ
lib/influxdb2/client/client.rb	100.00% <ø> (ø)
lib/influxdb2/client/default_api.rb	98.55% <100.00%> (+0.11%)	⬆️

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