Update LLVM to llvm/llvm-project@3f136f7 (#19479) #32880

Job	Run time
setup / setup	8s
setup / setup	8s
runtime_small	2m 34s
runtime_small	2m 34s
runtime :: ubuntu-24.04	1m 18s
runtime :: ubuntu-24.04	1m 18s
runtime_tracing :: tracy provider	1m 23s
runtime_tracing :: tracy provider	1m 23s
runtime :: windows-2022	3m 44s
runtime :: windows-2022	3m 44s
runtime_tracing :: console provider	1m 10s
runtime_tracing :: console provider	1m 10s
runtime :: macos-14	1m 32s
runtime :: macos-14	1m 29s
ci_summary / summary	2s
ci_summary / summary	1s
	23m 38s

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