Prepare for 11.1.0-rc.7 release (#6708)

Author: cknitt

CHANGELOG.md

@@ -10,11 +10,11 @@
 > - :house: [Internal]
 > - :nail_care: [Polish]
 
-# 11.1.0-rc.7 (Unreleased)
+# 11.1.0-rc.7
 
 #### :bug: Bug Fix
 
-- Fixes variance setting for builtin dict. Fixes issues around inference. https://github.com/rescript-lang/rescript-compiler/pull/6707 
+- Fix variance setting for builtin `dict` type. Fixes issues around inference. https://github.com/rescript-lang/rescript-compiler/pull/6707 
 
 # 11.1.0-rc.6