Add pyOpenSSL 21 constants (#6273)

Author: mhils

stubs/pyOpenSSL/METADATA.toml

@@ -1,3 +1,3 @@
-version = "20.0.*"
+version = "21.0.*"
 python2 = true
 requires = ["types-cryptography"]

stubs/pyOpenSSL/OpenSSL/SSL.pyi

@@ -20,17 +20,15 @@ TLSv1_METHOD: int
 TLSv1_1_METHOD: int
 TLSv1_2_METHOD: int
 
-# To be added in pyOpenSSL 21
-
-# TLS_METHOD: int
-# TLS_SERVER_METHOD: int
-# TLS_CLIENT_METHOD: int
-
-# SSL3_VERSION: int
-# TLS1_VERSION: int
-# TLS1_1_VERSION: int
-# TLS1_2_VERSION: int
-# TLS1_3_VERSION: int
+TLS_METHOD: int
+TLS_SERVER_METHOD: int
+TLS_CLIENT_METHOD: int
+
+SSL3_VERSION: int
+TLS1_VERSION: int
+TLS1_1_VERSION: int
+TLS1_2_VERSION: int
+TLS1_3_VERSION: int
 
 OP_NO_SSLv2: int
 OP_NO_SSLv3: int