Add the exception as proposed by github actions

Makefile

@@ -3,6 +3,7 @@
 build: 
 	# workaround to avoid the error: fatal: detected dubious ownership in repository at '/__w/brucutu/brucutu'
 	git config --global --add safe.directory /__w/brucutu/brucutu
+	git config --global --add safe.directory /brucutu
 	go build -v -o build/brucutu
 deps:
 	go mod tidy