build: use $(BUILDTYPE) when cleaning coverage files
          
            #5
        
      | Job | Run time | 
|---|---|
| 1m 31s | |
| 1m 31s | 
$(BUILDTYPE) when cleaning coverage files
          
            #5
        
| Job | Run time | 
|---|---|
| 1m 31s | |
| 1m 31s |