[!] Unable to determine Swift version for the following pods

[dustinyoste]

Describe the bug

[!] Unable to determine Swift version for the following pods:

- `InputMask` does not specify a Swift version and none of the targets (`AppName`) integrating 
it have the `SWIFT_VERSION` attribute set. Please contact the author or set the `SWIFT_VERSION` 
attribute in at least one of the targets that integrate this pod.

Additional context I believe including a swift_version to InputMask.podspec will resolve the problem.