Update additional copyright years to 2023. (GH-100859)

Author: ned-deily

Mac/Resources/app/Info.plist.in

@@ -20,7 +20,7 @@
 	<key>CFBundleExecutable</key>
 	<string>Python</string>
 	<key>CFBundleGetInfoString</key>
-	<string>%version%, (c) 2001-2020 Python Software Foundation.</string>
+	<string>%version%, (c) 2001-2023 Python Software Foundation.</string>
 	<key>CFBundleHelpBookFolder</key>
 	<array>
 		<string>Documentation</string>
@@ -55,7 +55,7 @@
 	<key>NSAppleScriptEnabled</key>
 	<true/>
 	<key>NSHumanReadableCopyright</key>
-	<string>(c) 2001-2020 Python Software Foundation.</string>
+	<string>(c) 2001-2023 Python Software Foundation.</string>
 	<key>NSHighResolutionCapable</key>
 	<true/>
 </dict>

Mac/Resources/framework/Info.plist.in

@@ -17,9 +17,9 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>%VERSION%, (c) 2001-2021 Python Software Foundation.</string>
+	<string>%VERSION%, (c) 2001-2023 Python Software Foundation.</string>
 	<key>CFBundleLongVersionString</key>
-	<string>%VERSION%, (c) 2001-2021 Python Software Foundation.</string>
+	<string>%VERSION%, (c) 2001-2023 Python Software Foundation.</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>