Fix make_temp: revert fallback to working_directory

Author: simant01

devlib/target.py

@@ -1215,7 +1215,7 @@ async def write_value(self, path, value, verify=True, as_root=True):
                 raise
 
     @asyn.asynccontextmanager
-    async def make_temp(self, is_directory=True, directory=None, prefix=None):
+    async def make_temp(self, is_directory=True, directory=None, prefix='devlib-test'):
         """
         Creates temporary file/folder on target and deletes it once it's done.
 
@@ -1233,8 +1233,8 @@ async def make_temp(self, is_directory=True, directory=None, prefix=None):
         :rtype: str
         """
 
-        directory = directory or self.tmp_directory
-        prefix = f'{prefix}-' if prefix else ''
+        directory = directory or self.working_directory
+        prefix = f'{prefix}-' if prefix else '-'
         temp_obj = None
         try:
             cmd = f'mktemp -p {quote(directory)} {quote(prefix)}XXXXXX'