[InfoExtractor] Misc yt-dlp back-ports, etc #887

Job	Run time
Linter	16s
Select tests from inputs	1s
Run tests (ubuntu-20.04, 2.6, cpython, core, sh)	1m 12s
Run tests (ubuntu-20.04, 2.7, cpython, core, sh)	1m 4s
Run tests (ubuntu-20.04, 3.2, cpython, core, sh)	1m 3s
Run tests (ubuntu-20.04, 3.3, cpython, core, sh)	1m 24s
Run tests (ubuntu-20.04, 3.4, cpython, core, sh)	1m 28s
Run tests (ubuntu-20.04, 3.5, cpython, core, sh)	1m 8s
Run tests (ubuntu-20.04, 3.6, cpython, core, sh)	1m 16s
Run tests (ubuntu-20.04, 3.7, cpython, core, sh)	1m 10s
Run tests (ubuntu-20.04, 3.8, cpython, core, sh)	1m 2s
Run tests (ubuntu-20.04, 3.9, cpython, core, sh)	1m 52s
Run tests (ubuntu-20.04, 3.10, cpython, core, sh)	1m 11s
Run tests (ubuntu-20.04, 3.11, cpython, core, sh)	1m 3s
Run tests (ubuntu-20.04, 3.12, cpython, core, sh)	1m 4s
Run tests (ubuntu-20.04, pypy-2.7, cpython, core, sh)	2m 41s
Run tests (ubuntu-20.04, pypy-3.6, cpython, core, sh)	2m 40s
Run tests (ubuntu-20.04, pypy-3.7, cpython, core, sh)	2m 42s
Run tests (windows-2019, 3.4, cpython, core, bat)	2m 4s
Run tests (windows-2019, 3.4, cpython, nodownload, bat)	1m 3s
Run tests (ubuntu-20.04, 2.7, jython, core, sh)	3m 11s
Run tests (ubuntu-20.04, 2.7, jython, nodownload, sh)	23s
	30m 58s

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