tests/dbusrunner: Add shortcut for recording with rr

RR now supports mutter, as per some upstream fixes [1], so we can add a
simple shortcut for the recorder

[1] https://github.com/rr-debugger/rr/pull/3140/

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3793>

src/tests/mutter_dbusrunner.py

@@ -270,6 +270,8 @@ def wrap_call(args, wrapper):
 
     if wrapper == 'gdb':
         args = ['gdb', '-ex', 'r', '-ex', 'bt full', '--args'] + args
+    elif wrapper == 'rr':
+        args = ['rr', 'record'] + args
     elif wrapper:
         args = wrapper.split(' ') + args