Set up release-date env variable creation tags for daily releases

.github/workflows/build-firmware.yaml

@@ -2,7 +2,7 @@ name: Create Board Firmware
 
 on:
   schedule:
-    - cron: '45 15 * * *' # build fresh every 3:45 PM UTC
+    - cron: '35 12 * * *' # build fresh every 3:45 PM UTC
   push:
 #  pull_request:
   workflow_dispatch:
@@ -18,6 +18,9 @@ jobs:
     - name: Set run variables
       id: set-variables
       run: |
+        if [ "${{github.event_name}}" = "schedule" ]; then
+          echo "release_date=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+        fi
         if [ "${{github.event_name}}" == "push" -o "${{github.event_name}}" == "schedule" -o "${{github.event_name}}" == "workflow_dispatch" ] && [ "${{github.ref}}" == "refs/heads/master" -o "${{github.ref}}" == "refs/heads/main" ]; then
           echo 'upload=bundles' >> $GITHUB_OUTPUT
           echo 'push=true' >> $GITHUB_OUTPUT