Fix cache collision with object file and precompiled headers #3996

Job	Run time
coverage ubuntu-20.04 rust nightly	4m 53s
check_features (azure)	40s
coverage macos-13 rust nightly	6m 15s
build sccache x86_64-unknown-linux-musl	6m 5s
check_features (gcs)	47s
build sccache-dist x86_64-unknown-linux-musl	4m 25s
check_features (gha)	43s
build sccache aarch64-unknown-linux-musl	6m 8s
clippy ubuntu-latest	1m 10s
check_features (memcached)	39s
build sccache armv7-unknown-linux-musleabi	6m 3s
clippy macOS-latest	1m 1s
check_features (redis)	39s
build sccache i686-unknown-linux-musl	6m 17s
clippy windows-latest	2m 22s
check_features (s3)	47s
build sccache x86_64-apple-darwin	8m 44s
rustfmt ubuntu-latest	11s
check_features (webdav)	35s
build sccache aarch64-apple-darwin	4m 43s
build sccache x86_64-pc-windows-msvc	16m 9s
build sccache aarch64-pc-windows-msvc	15m 42s
test freebsd-14.1 rust stable (ubuntu-22.04)	8m 0s
test ubuntu-20.04 rust 1.75.0	2m 41s
toml_format	13s
test ubuntu-22.04 rust 1.75.0 dist-server	3m 29s
test ubuntu-20.04 rust stable	2m 32s
test ubuntu-20.04 rust beta	3m 21s
test ubuntu-20.04 rust nightly	2m 21s
test ubuntu-20.04 rust stable no-default-features	2m 14s
test ubuntu-22.04 rust stable	2m 29s
test macos-13 rust stable	3m 37s
test macos-14 rust stable	2m 33s
test windows-2019 rust 1.75.0	5m 21s
test windows-2019 rust nightly	4m 25s
test windows-2019 rust beta	4m 29s
release	0s
	2h 22m 43s

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