ci: update cargo-deny config, bump cargo-deny-action to v2

Author: CathalMullan

.github/workflows/main.yml

@@ -146,8 +146,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: EmbarkStudios/cargo-deny-action@v1
-      
+      - uses: EmbarkStudios/cargo-deny-action@v2
+
   Result:
     name: Result
     runs-on: ubuntu-latest

deny.toml

@@ -1,4 +1,8 @@
 [licenses]
-allow-osi-fsf-free = "either"
-copyleft = "warn"
+version = 2
+allow = [
+  "MIT",
+  "Apache-2.0",
+  "Unicode-3.0",
+]
 private = { ignore = true }