supply default branch name for cron action runs (#1696)

Author: ElliotFriend

.github/workflows/crowdin-download-workflow.yml

@@ -8,7 +8,7 @@ on:
         required: true
         default: "main"
   schedule:
-    - cron: '0 20 * * *' # Runs daily at 20:00 UTC (15:00 Central)
+    - cron: '0 * * * *' # Runs daily at 20:00 UTC (15:00 Central)
 
 permissions:
   contents: write
@@ -19,14 +19,16 @@ jobs:
     runs-on: ubuntu-latest
 
     env:
+      TARGET_BRANCH:
+        ${{ github.event.inputs.target_branch || 'main' }}
       BRANCH_NAME:
-        feature/crowdin-download-${{ github.event.inputs.target_branch }}
+        feature/crowdin-download-${{ github.event.inputs.target_branch || 'main' }}
 
     steps:
       - name: Checkout target branch
         uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.inputs.target_branch }}
+          ref: ${{ env.TARGET_BRANCH }}
           fetch-depth: 0
 
       - name: Set up Git
@@ -116,7 +118,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           gh pr create --repo ${{ github.repository }} \
-            --base ${{ github.event.inputs.target_branch }} \
+            --base ${{ env.TARGET_BRANCH }} \
             --head $BRANCH_NAME \
             --title "Download translations and copy ignored files" \
             --body "This PR was created by GitHub Actions to download crowdin translations and run crowdin:fix command."