Bump certifi from 2024.2.2 to 2024.7.4 in /llvm/docs (#14465) #1569

Job	Run time
macOS / Build	10m 22s
Linux (Self build + shared libraries + no-assertions) / Build + LIT	1h 4m 59s
build-win / Build + LIT	45m 26s
e2e-win / Intel GEN12 Graphics with Level Zero	38m 55s
e2e-lin (Intel Arc A-Series Graphics with Level Zero, ["Linux", "arc"], --param matrix-xmx8=True ... / Intel Arc A-Series Graphics with Level Zero	13m 54s
e2e-lin (Perf tests on Intel Arc A-Series Graphics system, ["Linux", "arc"], {"LIT_FILTER":"Perfo... / Perf tests on Intel Arc A-Series Graphics system	1m 29s
e2e-lin (Intel GEN12 Graphics with Level Zero, ["Linux", "gen12"], --param gpu-intel-gen12=True, ... / Intel GEN12 Graphics with Level Zero	49m 4s
e2e-lin (Perf tests on Intel GEN12 Graphics system, ["Linux", "gen12"], {"LIT_FILTER":"Performanc... / Perf tests on Intel GEN12 Graphics system	1m 52s
	3h 46m 1s

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