Bump WPMediaPicker dependency from 1.8.0 to 1.8.1

Thank you for the fix @selanthiraiyan and @SergioEstevao.

See wordpress-mobile/MediaPicker-iOS#376.

Podfile

@@ -207,7 +207,7 @@ abstract_target 'Apps' do
 
     pod 'NSURL+IDN', '~> 0.4'
 
-    pod 'WPMediaPicker', '~> 1.8.0'
+    pod 'WPMediaPicker', '~> 1.8.1'
     #pod 'WPMediaPicker', :git => 'https://github.com/wordpress-mobile/MediaPicker-iOS.git', :tag => '1.7.0'
     ## while PR is in review:
     # pod 'WPMediaPicker', :git => 'https://github.com/wordpress-mobile/MediaPicker-iOS.git', :branch => ''

Podfile.lock

@@ -464,7 +464,7 @@ PODS:
     - CocoaLumberjack (~> 3.4)
     - FormatterKit/TimeIntervalFormatter (~> 1.8)
   - WordPressUI (1.12.2)
-  - WPMediaPicker (1.8.0)
+  - WPMediaPicker (1.8.1)
   - wpxmlrpc (0.9.0)
   - Yoga (1.14.0)
   - ZendeskCommonUISDK (6.1.1)
@@ -557,7 +557,7 @@ DEPENDENCIES:
   - WordPressMocks (~> 0.0.15)
   - WordPressShared (~> 1.17.0)
   - WordPressUI (~> 1.12.2)
-  - WPMediaPicker (~> 1.8.0)
+  - WPMediaPicker (~> 1.8.1)
   - Yoga (from `https://raw.githubusercontent.com/wordpress-mobile/gutenberg-mobile/v1.68.0/third-party-podspecs/Yoga.podspec.json`)
   - ZendeskSupportSDK (= 5.3.0)
   - ZIPFoundation (~> 0.9.8)
@@ -814,7 +814,7 @@ SPEC CHECKSUMS:
   WordPressMocks: 6b52b0764d9939408151367dd9c6e8a910877f4d
   WordPressShared: a4b0308a6345d4dda20c8f7ad9317df4246b4a00
   WordPressUI: c573f4b5c2e5d0ffcebe69ecf86ae75ab7b6ff4d
-  WPMediaPicker: 6c0d06881a7d3dcaf4cf7b51db51c08ac3eab849
+  WPMediaPicker: 9011a0ec1f468c039af7485c244576b4c9889a0f
   wpxmlrpc: bf55a43a7e710bd2a4fb8c02dfe83b1246f14f13
   Yoga: 982b1e7bf7c0873643955853293b269e4487890e
   ZendeskCommonUISDK: 5808802951ad2bb424f0bed4259dc3c0ce9b52ec
@@ -826,6 +826,6 @@ SPEC CHECKSUMS:
   ZendeskSupportSDK: 3a8e508ab1d9dd22dc038df6c694466414e037ba
   ZIPFoundation: e27423c004a5a1410c15933407747374e7c6cb6e
 
-PODFILE CHECKSUM: 79af399f1b4b5c87599a6125283a97c916b15b91
+PODFILE CHECKSUM: 24c5ae98907639f791afe296c308322d2ef35c53
 
 COCOAPODS: 1.10.1