feat: add headers to http error responses

[twosdai]

Fixes #1018

Proposed Changes

Adds headers to the HTTP error response.

Checklist

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

[twosdai]

I am not super familiar with this repo, and this is my first contribution here. Please take a bit more time and review the code. Happy to make any changes you callout.

The basic idea of this change is to include a headers object in the HttpError thrown by influx. There are multiple different "types" of header formats, I chose to boil them down to the internal format which is basically just a simple Record<string, string> This means that for the browser client we need to go over each header value and map it into a object and then pass it in. Since the default Headers from the response object will cause typescript to error out at compile time.

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (e65b8fb) to head (70a8805).

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Additional details and impacted files

@@            Coverage Diff            @@
##            master     #1019   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           35        35           
  Lines         1448      1449    +1     
  Branches       344       344           
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+ Hits          1448      1449    +1     

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[bednar]

Thank you for your PR! 👍 Before we can proceed with accepting it, there are a few requirements that need to be met:

[twosdai]

@bednar Thanks for the comments, I've implemented the change here: c3fb1fa

Let me know if you need / want anything else.

[bednar]

@twosdai, thank you again for your fantastic PR! 👍

Could you please update the CHANGELOG.md with the following entry:

### Features

1. [1019](https://github.com/influxdata/influxdb-client-js/pull/1019/): Propagates headers from HTTP response when an error is returned from the server.

Once that's done, we'll be ready to merge this PR.

[twosdai]

@bednar See the commit here for the changelog update: 643e6f4

Let me know if you need anything else! Thanks for the quick review :)

[bednar]

LGTM 🚀