Update version number for rc 2.
diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py
index bd7378c..55ab234 100644
--- a/mesonbuild/coredata.py
+++ b/mesonbuild/coredata.py
@@ -38,7 +38,7 @@
 
     OptionDictType = T.Dict[str, 'UserOption[T.Any]']
 
-version = '0.55.0.rc1'
+version = '0.55.0.rc2'
 backendlist = ['ninja', 'vs', 'vs2010', 'vs2015', 'vs2017', 'vs2019', 'xcode']
 
 default_yielding = False