Use trusted publishing with crates.io (#99)

Author: divergentdave

.github/workflows/publish-crate.yml

@@ -7,8 +7,15 @@ on:
 jobs:
   crate:
     runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      id-token: write
     steps:
     - uses: actions/checkout@v6
+    - name: Install Rust toolchain
+      uses: dtolnay/rust-toolchain@stable
+    - id: auth
+      uses: rust-lang/crates-io-auth-action@v1
     - run: cargo publish
       env:
-        CARGO_REGISTRY_TOKEN: ${{ secrets.DIVVIUP_GITHUB_AUTOMATION_CRATES_IO_API_TOKEN }}
+        CARGO_REGISTRY_TOKEN: ${{ steps.auth.outputs.token }}