Update build_humble.yaml

.github/workflows/build_humble.yaml

@@ -36,7 +36,7 @@ jobs:
           required-ros-distributions: humble
       - name: Checkout Aerostack2
         run : |
-          echo 'repositories:\n  aerostack2:\n    type: git\n    url: https://github.com/aerostack2/aerostack2.git\n    version: main' >> /tmp/dependencies.repos
+          echo "repositories:\n  aerostack2:\n    type: git\n    url: https://github.com/aerostack2/aerostack2.git\n    version:  ${{ github.event.inputs.target_branch }} " >> /tmp/dependencies.repos
       - name: build and test
         uses: ros-tooling/[email protected]
         with: