add a debugging workflow

Author: duncanpo

.github/workflows/test_linux_build.yml

@@ -10,6 +10,7 @@ jobs:
           image: ubuntu:20.04
         env:
             OPENTELEMETRY_MATLAB_INSTALL: "${{ github.workspace }}/otel_matlab_install"
+            DEBIAN_FRONTEND: noninteractive
         steps:
             - name: Download OpenTelemetry-Matlab source
               uses: actions/checkout@v3