Add workflow to publish crate

Author: jbearer

.github/workflows/cargo-publish.yml

@@ -0,0 +1,23 @@
+name: Publish Crate
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rs/toolchain@v1
+        with:
+            toolchain: stable
+            override: true
+      - uses: katyo/publish-crates@v2
+        with:
+            dry-run: ${{ github.event_name != 'push' }}
+            ignore-unpublished-changes: true