Update macOS installer screens to 3.13. (pythonGH-107475)

Author: ned-deily

Mac/BuildScript/resources/ReadMe.rtf

@@ -11,22 +11,22 @@
 \pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
 
 \f1\b \cf0 NOTE: 
-\f0\b0 This is a beta preview of Python 3.12.0, the next feature release of Python 3.  It is not intended for production use.\
+\f0\b0 This is an alpha preview of Python 3.13.0, the next feature release of Python 3.  It is not intended for production use.\
 \pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
 \cf0 \
 \pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
 
 \f1\b \cf0 \ul \ulc0 Certificate verification and OpenSSL\
 
 \f0\b0 \ulnone \
-This package includes its own private copy of OpenSSL 1.1.1.   The trust certificates in system and user keychains managed by the 
+This package includes its own private copy of OpenSSL 3.0.   The trust certificates in system and user keychains managed by the 
 \f2\i Keychain Access 
 \f0\i0 application and the 
 \f2\i security
 \f0\i0  command line utility are not used as defaults by the Python 
 \f3 ssl
 \f0  module.  A sample command script is included in 
-\f3 /Applications/Python 3.11
+\f3 /Applications/Python 3.13
 \f0  to install a curated bundle of default root certificates from the third-party 
 \f3 certifi
 \f0  package ({\field{\*\fldinst{HYPERLINK "https://pypi.org/project/certifi/"}}{\fldrslt https://pypi.org/project/certifi/}}).  Double-click on 

Mac/BuildScript/resources/Welcome.rtf

@@ -12,9 +12,8 @@
 \f1\b macOS $MACOSX_DEPLOYMENT_TARGET
 \f0\b0 .\
 \
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
 
-\f1\b \cf0 Python for macOS
+\f1\b Python for macOS
 \f0\b0  consists of the {\field{\*\fldinst{HYPERLINK "https://www.python.org"}}{\fldrslt Python}} programming language interpreter and its batteries-included standard library to allow easy access to macOS features.  It also includes the Python integrated development environment, 
 \f1\b IDLE
 \f0\b0 .  You can also use the included 
@@ -27,5 +26,5 @@ At the end of this install, click on
 \
 
 \f1\b NOTE: 
-\f0\b0 This is a beta test preview of Python 3.12.0, the next feature release of Python 3.  It is not intended for production use.\
+\f0\b0 This is an alpha test preview of Python 3.13.0, the next feature release of Python 3.  It is not intended for production use.\
 }