[release-only] Bump version to 0.22.1 (pytorch#9061)

[release-only] Bump version to 0.22.1 (pytorch#9061)

[release-only] Bump version to 0.22.1 (pytorch#9061)

[release-only] Bump version to 0.22.1 (pytorch#9061)

[Cherry-pick for 0.22] Put back docs of decode_png (pytorch#9016)

[Cherry-pick for 0.22] Put back docs of decode_png (pytorch#9016)

[Cherry-pick for 0.22] Put back docs of decode_png (pytorch#9016)

[Cherry-pick for 0.22 release] Remove stanford cars download instruct…

…ions (pytorch#9012) (pytorch#9013)

[Cherry-pick for 0.22 release] Remove stanford cars download instruct…

…ions (pytorch#9012) (pytorch#9013)

0.22 Cherry-picks continued (pytorch#9004)

Co-authored-by: GdoongMathew <[email protected]>