Add release workflow for automatic GitHub releases on version tags

Author: ch-bas

.github/workflows/release.yml

@@ -0,0 +1,44 @@
+name: release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Build dataset
+        run: node scripts/build.js
+
+      - name: Extract version from tag
+        id: version
+        run: echo "version=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_OUTPUT"
+
+      - name: Extract changelog for this version
+        id: changelog
+        run: |
+          # Extract the section for this version from CHANGELOG.md
+          awk '/^## \['"${{ steps.version.outputs.version }}"'\]/{found=1; next} /^## /{if(found) exit} found' CHANGELOG.md > /tmp/release-notes.md
+          echo "body<<RELEASE_EOF" >> "$GITHUB_OUTPUT"
+          cat /tmp/release-notes.md >> "$GITHUB_OUTPUT"
+          echo "RELEASE_EOF" >> "$GITHUB_OUTPUT"
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          name: v${{ steps.version.outputs.version }}
+          body: ${{ steps.changelog.outputs.body }}
+          files: |
+            data/cameras.json
+            data/cameras.csv