Enable verbose debugging during Github Actions CI

Author: mkitti

.github/workflows/CI.yml

@@ -75,6 +75,8 @@ jobs:
           arch: ${{ matrix.arch }}
       - uses: julia-actions/julia-buildpkg@latest
       - uses: julia-actions/julia-runtest@latest
+        env:
+          JULIA_DEBUG: Main
       - uses: julia-actions/julia-processcoverage@latest
       - uses: codecov/codecov-action@v1
         with: