Update podfile to target WordPressKit 8.5

Podfile

@@ -50,7 +50,7 @@ def wordpress_ui
 end
 
 def wordpress_kit
-  pod 'WordPressKit', '~> 8.5-beta.3'
+  pod 'WordPressKit', '~> 8.5'
   # pod 'WordPressKit', git: 'https://github.com/wordpress-mobile/WordPressKit-iOS.git', tag: ''
   # pod 'WordPressKit', git: 'https://github.com/wordpress-mobile/WordPressKit-iOS.git', branch: ''
   # pod 'WordPressKit', git: 'https://github.com/wordpress-mobile/WordPressKit-iOS.git', commit: ''

Podfile.lock

@@ -512,7 +512,7 @@ PODS:
     - WordPressKit (~> 8.0-beta)
     - WordPressShared (~> 2.1-beta)
     - WordPressUI (~> 1.7-beta)
-  - WordPressKit (8.5.0-beta.3):
+  - WordPressKit (8.5.0):
     - Alamofire (~> 4.8.0)
     - NSObject-SafeExpectations (~> 0.0.4)
     - UIDeviceIdentifier (~> 2.0)
@@ -612,7 +612,7 @@ DEPENDENCIES:
   - SwiftLint (~> 0.50)
   - WordPress-Editor-iOS (~> 1.19.8)
   - WordPressAuthenticator (~> 6.1-beta)
-  - WordPressKit (~> 8.5-beta.3)
+  - WordPressKit (~> 8.5)
   - WordPressShared (~> 2.2-beta)
   - WordPressUI (~> 1.12.5)
   - WPMediaPicker (~> 1.8-beta)
@@ -880,7 +880,7 @@ SPEC CHECKSUMS:
   WordPress-Aztec-iOS: 7d11d598f14c82c727c08b56bd35fbeb7dafb504
   WordPress-Editor-iOS: 9eb9f12f21a5209cb837908d81ffe1e31cb27345
   WordPressAuthenticator: b0b900696de5129a215adcd1e9ae6eb89da36ac8
-  WordPressKit: 29a0cd0cfbddc8b4bfbe076e0d29b258ba8daa6a
+  WordPressKit: f6943a6e927e9f57bc8793938af1e3a4c3adb614
   WordPressShared: 87f3ee89b0a3e83106106f13a8b71605fb8eb6d2
   WordPressUI: c5be816f6c7b3392224ac21de9e521e89fa108ac
   WPMediaPicker: 0d40b8d66b6dfdaa2d6a41e3be51249ff5898775
@@ -895,6 +895,6 @@ SPEC CHECKSUMS:
   ZendeskSupportSDK: 3a8e508ab1d9dd22dc038df6c694466414e037ba
   ZIPFoundation: ae5b4b813d216d3bf0a148773267fff14bd51d37
 
-PODFILE CHECKSUM: 66f009c76957bfeaeeb56fd48cb877edb372951c
+PODFILE CHECKSUM: 05c81b021c29ea99daf4ef573cb2dcf6ecaf1e4c
 
 COCOAPODS: 1.12.1