build: add publish-to-crates-io workflow

.forgejo/workflows/publish-to-crates-io.yml

@@ -0,0 +1,25 @@
+name: Publish to crates.io
+
+on:
+  release:
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: docker
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Login
+        uses: https://git.kemitix.net/kemitix/rust@v0.3.1
+        with:
+          args: login "$CARGO_REGISTRY_TOKEN"
+
+      - name: Publish
+        uses: https://git.kemitix.net/kemitix/rust@v0.3.1
+        with:
+          args: publish --registry crates-io --no-verify