[INFRA] Close stale PR

Closes #17422
Closes #17619
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Closes #17894
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Closes #21095

Added:
Closes #19233
Closes #20100
Closes #21453
Closes #21455
Closes #18477

Added:
Closes #21812
Closes #21787

Author: hyukjinkwon <[email protected]>

Closes #21781 from HyukjinKwon/closing-prs.

Author: HyukjinKwon