feat: Add support for configurable maxHeaderSize in HTTP requests (#1… #951

Job	Run time
Lint	23s
Tests (20, ubuntu-latest)	4m 27s
Browser Tests	4m 29s
Tests (18, windows-latest)	4m 13s
Tests (latest, ubuntu-latest, true)	4m 28s
Tests (18, ubuntu-latest)	4m 29s
Tests (20, windows-latest)	4m 13s
	26m 42s

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