[CI] Limit Pages write permissions to deploy job (#839) #5114

Job	Run time
ci-scope	4s
pre-commit / link-check	16s
pre-commit / pre-commit	2m 26s
ubuntu / clang-build (ubuntu-26.04)	3m 37s
mac / clang-build (Debug)	2m 5s
ubuntu / gcc-build (ubuntu-26.04, Debug)	2m 20s
ubuntu / gcc-build (ubuntu-26.04, Release)	2m 7s
mac / clang-build (Release)	2m 52s
windows / msvc-build (Release)	2m 10s
windows / msvc-build (Debug)	3m 23s
windows / clang-build	2m 57s
ubuntu / gcc-test (ubuntu-26.04)	2m 41s
mac / clang-test	1m 53s
windows / clang-test	2m 39s
windows / msvc-test	2m 16s
ubuntu / clang-test (ubuntu-26.04)	2m 35s
ubuntu / clang-sanitizer-build (ubuntu-26.04)	3m 26s
mac / clang-test-extended	2m 4s
ubuntu / gcc-test-extended (ubuntu-26.04)	1m 42s
windows / clang-test-extended	1m 42s
windows / msvc-test-extended	1m 37s
ubuntu / clang-test-extended (ubuntu-26.04)	1m 57s
ubuntu / clang-sanitizer-test (ubuntu-26.04)	1m 22s
ubuntu / gcc-build-codecov	4m 0s
ubuntu / clang-sanitizer-test-extended (ubuntu-26.04)	1m 6s
perf / macos-clang-build-perf-stats	2m 30s
perf / ubuntu-gcc-build-perf-stats	1m 8s
pages / build-scoreboard	20s
pages / build-doxygen-xml	40s
pages / build-sphinx	36s
pages / deploy-pages	43s
	1h 1m 14s

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