iOS builds: skip the encryption check in App Store Connect

Now that we can update info.plist:

https://docs.flutterflow.io/concepts/custom-code/configuration-files#infoplist-ios

You can add this as a snippet and your new build will show up in Test Flight without you having to go into App Store Connent and attest to the "App Uses Non-Exempt Encryption" each time. (Of course, only set to false if you're actually not using any encryption you should declare, otherwise set as appropriate for your case.)

Add this snippet:

(button will say Add not Edit when you're adding it at first)

Here's the text:

<key>ITSAppUsesNonExemptEncryption</key>
<false/>