chore: add release action

.github/workflows/release.yml

@@ -0,0 +1,29 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+
+  Release:
+    # prevents this action from running on forks
+    if: github.repository == 'manzt/reference-spec-reader'
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: pnpm/action-setup@v2
+      - uses: actions/setup-node@v3
+        with:
+          node-version: "18.x"
+      - run: pnpm install --frozen-lock
+
+      - name: Create Release Pull Request or Publish
+        id: changesets
+        uses: changesets/action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}