Bump rocm-docs-core from 1.11.0 to 1.12.0 in /docs/sphinx (#3719) #22102

Job	Run time
Check if image exists in registry	5s
cancel	4s
linux (ubuntu-20.04, debug)	2h 32m 44s
licensing	4m 41s
linux (ubuntu-20.04, release)	1h 43m 52s
pyflakes	3m 16s
linux (ubuntu-20.04, codecov)	1h 35m 44s
linux-fpga (ubuntu-20.04, debug)	2h 32m 59s
misspell	15s
Build SLES image	1h 5m 48s
Build image	1h 7m 1s
sles	38m 47s
cppcheck	57m 50s
format	5m 53s
tidy	1h 28m 46s
	13h 57m 45s

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