chore: update iOS 0.21.13

Author: ethanneff

plugin.xml

@@ -133,7 +133,6 @@ SOFTWARE.
     <source-file src="src/ios/dependencies/Branch-SDK/BNCStrongMatchHelper.m" />
     <header-file src="src/ios/dependencies/Branch-SDK/BNCSystemObserver.h" />
     <source-file src="src/ios/dependencies/Branch-SDK/BNCSystemObserver.m" />
-    <header-file src="src/ios/dependencies/Branch-SDK/Branch-SDK-Prefix.pch" />
     <header-file src="src/ios/dependencies/Branch-SDK/Branch.h" />
     <source-file src="src/ios/dependencies/Branch-SDK/Branch.m" />
     <header-file src="src/ios/dependencies/Branch-SDK/BranchActivityItemProvider.h" />

src/ios/dependencies/Branch-SDK/BNCConfig.m

@@ -12,4 +12,4 @@
 BOOL       const BNC_API_PINNED      = YES;
 NSString * const BNC_API_VERSION     = @"v1";
 NSString * const BNC_LINK_URL        = @"https://bnc.lt";
-NSString * const BNC_SDK_VERSION     = @"0.21.11";
+NSString * const BNC_SDK_VERSION     = @"0.21.13";