chore: Add licenses #43

Job	Run time
Determine toolchains	4s
cargo clippy (windows-2025, stable)	8m 8s
cargo clippy (ubuntu-24.04, stable)	2m 40s
cargo clippy (macos-15, 1.90.0)	4m 54s
cargo clippy (windows-2025, nightly)	4m 38s
cargo clippy (windows-2025, 1.90.0)	16m 53s
cargo clippy (macos-15, nightly)	1m 10s
cargo clippy (ubuntu-24.04, nightly)	50s
cargo clippy (ubuntu-24.04, 1.90.0)	3m 4s
cargo clippy (macos-15, stable)	5m 50s
	48m 11s

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