treating warnings as errors during workflows (#1473)

* treating warnings as errors during workflows

* suppress warnings for moench calibration

* no format overflow

* revert formatting

* bettter conditional branching in cmake

.github/workflows/cmake.yaml

@@ -37,7 +37,8 @@ jobs:
           -DSLS_USE_PYTHON=ON \
           -DSLS_USE_HDF5=ON \
           -DSLS_USE_GUI=ON \
-          -DSLS_USE_MOENCH=ON
+          -DSLS_USE_MOENCH=ON \
+          -DSLS_TREAT_WARNINGS_AS_ERRORS=ON
 
       - name: Build
         # Build your program with the given configuration