Buffering readonly files #13468

Job	Run time
changed_files	6s
check_if_release_branch	1s
towncrier_check	7s
build mirrord CLI	0s
check-rust-docs	4m 36s
test_agent_image	6m 29s
macos_tests	28m 37s
integration_tests	14m 27s
lint	13m 0s
test_agent	3m 17s
test_cli_image	16m 44s
lint_markdown	0s
intellij_e2e_on_release_branch	0s
e2e (docker)	13m 7s
vscode_e2e_on_release_branch	0s
e2e (containerd)	12m 18s
ci	1s
	1h 52m 50s

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