build

config: add convenient method to insert value into layer, migrate cal… #160

Job	Run time
Build jj-lib without Git support	47s
Check protos	32s
cargo-deny (advisories)	25s
build (ubuntu-latest)	5m 9s
cargo-deny (bans licenses sources)	22s
build (macos-13)	6m 20s
Clippy check	2m 33s
Check that MkDocs can build the docs	12s
build (macos-14)	3m 37s
Check that MkDocs can build the docs with latest Python and uv	10s
build (windows-latest)	9m 24s
Check formatting	17s
build (ubuntu-latest, --all-features)	6m 9s
	35m 57s

Provide feedback