Remove --verbose from spack install in GH-Actions.

Author: nkoukpaizan

.github/workflows/spack_cpu_build.yaml

@@ -180,7 +180,7 @@ jobs:
         run: spack -e . install --no-check-signature --only dependencies
 
       - name: Install package
-        run: spack -e . install --no-check-signature --fail-fast --keep-stage --no-cache --fresh --verbose
+        run: spack -e . install --no-check-signature --fail-fast --keep-stage --no-cache --fresh
 
       - name: Test Build
         run: cd $(spack -e . location --build-dir exago@develop) && ctest -VV