chore: added cargo-deny

Author: Eagle941

.github/workflows/build.yml

@@ -94,3 +94,24 @@ jobs:
           target/
     - name: Cargo doc
       run: cargo doc --no-deps --document-private-items --locked
+
+  licensing:
+    name: Licenses
+    runs-on: "ubuntu-latest"
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v4
+    - name: Rust cache
+      uses: Swatinem/rust-cache@v2
+      with:
+        shared-key: "licensing-cache"
+        cache-all-crates: "true"
+        cache-directories: |
+          ~/.cargo/registry/index/
+          ~/.cargo/registry/cache/
+          ~/.cargo/git/db/
+          target/
+    - uses: EmbarkStudios/cargo-deny-action@v2.0.12
+      with:
+        manifest-path: ./Cargo.toml
+        command: check

deny.toml

@@ -0,0 +1,28 @@
+[graph]
+all-features = true
+
+[advisories]
+unmaintained = "workspace"
+ignore = [
+]
+
+[bans]
+multiple-versions = "deny"
+wildcards = "deny"
+allow-wildcard-paths = true
+
+[sources]
+unknown-registry = "deny"
+unknown-git = "deny"
+
+[licenses]
+confidence-threshold = 0.95
+allow = [
+    "Apache-2.0",
+    "MIT",
+]
+exceptions = [
+    # Each entry is the crate and version constraint, and its specific allow
+    # list
+    { crate = "unicode-ident", allow = ["Unicode-3.0"] },
+]