fix: reference the correct iOS SDK and the correct podfile setup

Author: MoKamall

example/ios/Podfile.lock

@@ -1,7 +1,7 @@
 PODS:
   - Flutter (1.0.0)
   - Instabug (15.1.1)
-  - instabug_flutter (15.0.1):
+  - instabug_flutter (15.1.1):
     - Flutter
     - Instabug (= 15.1.1)
   - OCMock (3.6)
@@ -25,7 +25,7 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
   Instabug: 3e7af445c14d7823fcdecba223f09b5f7c0c6ce1
-  instabug_flutter: e4e366434313bab3a2db123c1501ca6247dc950b
+  instabug_flutter: 30aec1138f5d9c99d175e4f4ad49189ed844b72a
   OCMock: 5ea90566be239f179ba766fd9fbae5885040b992
 
 PODFILE CHECKSUM: 4d0aaaf6a444f68024f992999ff2c2ee26baa6ec

example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -68,6 +68,7 @@
       ignoresPersistentStateOnLaunch = "NO"
       debugDocumentVersioning = "YES"
       debugServiceExtension = "internal"
+      enableGPUValidationMode = "1"
       allowLocationSimulation = "YES">
       <BuildableProductRunnable
          runnableDebuggingMode = "0">

ios/instabug_flutter.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name              = 'instabug_flutter'
-  s.version           = '15.0.1'
+  s.version           = '15.1.1'
   s.summary           = 'Flutter plugin for integrating the Instabug SDK.'
   s.author            = 'Instabug'
   s.homepage          = 'https://www.instabug.com/platforms/flutter'