Fix language picker base URL (#440) #2717

Job	Run time
clang-format	8s
python-lint	5s
ubuntu-clang-build (ubuntu-24.04)	1m 0s
ubuntu-clang-build (ubuntu-24.04-arm)	2m 29s
ubuntu-gcc-build (ubuntu-24.04-arm)	1m 58s
ubuntu-gcc-build (ubuntu-24.04)	1m 16s
windows-msvc-build	2m 17s
windows-clang-build	2m 26s
macos-clang-build	1m 45s
macos-clang-test	2m 59s
ubuntu-gcc-test (ubuntu-24.04)	4m 19s
ubuntu-gcc-test (ubuntu-24.04-arm)	5m 12s
windows-msvc-test	2m 12s
windows-clang-test	1m 18s
ubuntu-clang-sanitizer-build (ubuntu-24.04)	1m 9s
ubuntu-clang-test (ubuntu-24.04-arm)	6m 9s
ubuntu-clang-test (ubuntu-24.04)	4m 42s
ubuntu-clang-sanitizer-test (ubuntu-24.04)	1m 52s
windows-clang-test-extended	1m 17s
windows-msvc-test-extended	1m 17s
macos-clang-test-extended	2m 13s
ubuntu-clang-sanitizer-test-extended (ubuntu-24.04)	1m 46s
ubuntu-gcc-test-extended (ubuntu-24.04-arm)	3m 54s
ubuntu-gcc-test-extended (ubuntu-24.04)	2m 41s
ubuntu-clang-test-extended (ubuntu-24.04)	2m 52s
ubuntu-clang-test-extended (ubuntu-24.04-arm)	3m 31s
ubuntu-gcc-build-codecov	3m 31s
ubuntu-gcc-build-perf-stats	1m 8s
	1h 7m 26s

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