fix: http/https proxy authorization

[kinolaev]

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• I rebased my work on top of the main branch.
• I ran npm test and all tests passed.
• I added test coverages if relevant.

Description

For http and https proxies proxyAuthorizationHeader must be used instead of username and password (mdn)

Type of change

Select all that apply.

• Bug fix
• New feature
• Major change (fix or feature that would cause existing functionality to work differently than in the current version)

Tag issues related to this pull request:

• Add credentials to the proxy configuration #2801