docs: add LICENSE #3803

Job	Run time
build-libs-others-amd64 😨 (windows-latest)	7m 56s
build-libs-others-amd64 😨 (macos-latest)	11m 9s
build-libs-emscripten 🧐	6m 39s
build-libs-linux-amd64 😁 (system_deps)	9m 18s
build-libs-linux-amd64 😁 (bundled_deps)	27m 52s
build-libs-linux-amd64 😁 (system_deps_w_chisels)	8m 40s
build-libs-linux-amd64 😁 (system_deps_minimal)	5m 21s
build-libs-linux-amd64-asan 🧐	16m 12s
build-shared-libs-linux-amd64 🧐	5m 51s
run-e2e-tests-amd64 (system_deps)	13m 6s
run-e2e-tests-amd64 (bundled_deps)	34m 49s
run-e2e-tests-amd64 (system_deps_w_chisels)	11m 31s
run-e2e-tests-amd64 (asan)	33m 25s
paths-filter	5s
test-libs-static (bundled_deps)	25m 53s
test-drivers-x86 😇 (bundled_deps)	0s
test-scap-x86 😆 (bundled_deps)	0s
build-libs-s390x 😁 (system_deps)	0s
	3h 37m 47s

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