Build debug branches.

.github/workflows/build_ubuntu.yml

@@ -3,13 +3,15 @@ on:
   push:
     branches:
       - master
+      - 'debug/**'
+
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
     - id: INSTALL_ADDITIONAL_BUILD_DEPENDENCIES
-      run: sudo apt-get install librtlsdr-dev libusb-dev ncurses-dev 
+      run: sudo apt-get install librtlsdr-dev libusb-dev ncurses-dev
     - id: CONFIGURE
       run: ./configure
     - id: MAKE