install iscc manually

Author: josxha

.github/workflows/branch.yml

@@ -120,6 +120,9 @@ jobs:
           cache: true
       - name: Build Windows Application
         run: flutter build windows --dart-define=COMMIT_SHA=${{ github.sha }} --dart-define=flutter.flutter_map.unblockOSM="${{ secrets.UNBLOCK_OSM }}"
+      - name: Install ISCC
+        if: ${{ matrix.sdk == '' }}
+        run: pip3 install iscc-cli
       - name: Create Windows Application Installer
         if: ${{ matrix.sdk == '' }}
         run: iscc "windowsApplicationInstallerSetup.iss"