Add GitHub release action workflow

.github/workflows/ci.yaml

@@ -3,11 +3,11 @@ on:
   push:
     paths:
       - .github/workflows/ci.yaml
-      - 'firmware/**'
+      - "firmware/**"
   pull_request:
     paths:
       - .github/workflows/ci.yaml
-      - 'firmware/**'
+      - "firmware/**"
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/release.yaml

@@ -0,0 +1,39 @@
+name: Release
+on:
+  push:
+    # tags:
+    #   - "firmware-[0-9]+.[0-9]+.[0-9]+"
+    #   - "firmware-[0-9]+.[0-9]+.[0-9]+-*"
+    branches:
+      - release-action
+
+permissions:
+  contents: write
+
+jobs:
+  wait_for_ci:
+    name: Wait for CI Workflow
+    runs-on: ubuntu-latest
+    steps:
+      - name: Wait for CI
+        uses: lewagon/[email protected]
+        with:
+          ref: ${{ github.ref }}
+          check-name: Image
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+
+  release:
+    name: Release
+    needs: [wait_for_ci]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download image artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: touch-n-drink-esp32c3
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        with:
+          body_path: firmware/CHANGELOG.md
+          draft: true
+          files: touch-n-drink*.bin

firmware/README.md

@@ -1,6 +1,6 @@
 # Touch 'n Drink Firmware
 
-Firmware images are automatically build by GitHub actions. They can be downloaded as artifacts of recent [CI][actions] runs <!-- eventually: on the [releases] page --> and flashed [from your browser][esptool-js]. The setup described below is only needed for local development.
+Firmware images are automatically build by GitHub actions. They can be downloaded from the [releases] page and flashed [from your browser][esptool-js]. The setup described below is only needed for local development.
 
 ## Requirements