PEP 619: Mark 3.10.0b2 as relased. (#1991)

Author: domdfcoding

pep-0619.rst

@@ -52,10 +52,10 @@ Actual:
 - 3.10.0 alpha 7: Tuesday, 2021-04-06
 - 3.10.0 beta 1: Monday, 2021-05-03
   (No new features beyond this point.)
+- 3.10.0 beta 2: Monday, 2021-05-31
 
 Expected:
 
-- 3.10.0 beta 2: Tuesday, 2021-05-25
 - 3.10.0 beta 3: Thursday, 2021-06-17
 - 3.10.0 beta 4: Saturday, 2021-07-10
 - 3.10.0 candidate 1: Monday, 2021-08-02