make-compilation-db: trigger relevant dependency fetches in script. #4830

Job	Run time
ClangTidy	4m 24s
CheckFormattingAndBuildfileClean	1m 53s
KytheVerification	0s
x86_64 test	3m 48s
arm64 test	4m 1s
KytheXrefs	0s
MacOsBuild	3m 48s
x86_64 test-clang	3m 30s
PrepareVSPlugin	2m 12s
arm64 test-clang	4m 1s
WindowsBuild	8m 22s
x86_64 test-nortti	3m 27s
x86_64 test-c++20	3m 18s
x86_64 test-c++23	3m 6s
x86_64 smoke-test	8m 44s
arm64 smoke-test	8m 45s
x86_64 asan	4m 57s
x86_64 asan-clang	4m 23s
x86_64 compile	3m 30s
arm64 compile	3m 43s
x86_64 compile-clang	3m 4s
arm64 compile-clang	3m 37s
x86_64 compile-static	3m 7s
arm64 compile-static	3m 51s
x86_64 compile-static-clang	3m 0s
arm64 compile-static-clang	3m 47s
x86_64 clean	7m 42s
arm64 clean	6m 58s
📦 Release	1s
Build and deploy GitHub pages	1s
	1h 55m 0s

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