chore(ci): update cache key in release workflow

The cache key for the cargo and target directories in the release workflow is updated from 'ntangler' to 'ntangler'. This change ensures the correct cache key is used during the build process.

.github/workflows/release.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Cache cargo & target directories
         uses: Swatinem/rust-cache@v2
         with:
-        key: "ntangler"
+          key: "ntangler"
       - name: Build binary
         uses: houseabsolute/actions-rust-cross@v0
         with: