Fix build-flatpak.yaml

Author: danielvartan

.github/workflows/build-flatpack.yaml

@@ -18,19 +18,19 @@ jobs:
 
     - name: Extract version from CITATION.cff
       run: |
-        VERSION=$(
-          grep '^version:' CITATION.cff
-            | sed 's/version: *//'
-            | tr -d '"'
-            | tr -d "'"
+        version=$( \
+          grep '^version:' CITATION.cff \
+            | sed 's/version: *//' \
+            | tr -d '"' \
+            | tr -d "'" \
         )
 
-        echo "PACKAGE_VERSION=$VERSION" >> $GITHUB_ENV
+        echo "PACKAGE_VERSION=$version" >> $GITHUB_ENV
       shell: bash
 
     - name: Build Flatpak
       uses: flatpak/flatpak-github-actions/flatpak-builder@v6
       with:
-        bundle: "logopak-${{ env.PACKAGE_VERSION }}.flatpak"
+        bundle: "logopak-v${{ env.PACKAGE_VERSION }}.flatpak"
         manifest-path: flatpak/com.danielvartan.logopak.yaml
         cache-key: flatpak-builder-${{ github.sha }}