Update minimum iOS deployment target to iOS 9.0

[tinder-owenthomas]

Xcode 12 no longer supports iOS 8 and throws warnings if any frameworks use a lower minimum deployment target. This PR updates the deployment target in both the podspec as well as the run tests. I didn't see any other places it needs to be updated but am happy to update other locations if they exist.

I've included a minor version bump in the podspec since this is a semi-breaking change as it will no longer support anyone who is developing for iOS 8 - although since Apple doesn't support that type of development anyway it seems unlikely and therefore not worthy of a major bump.

[tinder-owenthomas]

@swisspol This repo won't allow me to add you as a requested reviewer. Is there a process to get PRs like this reviewed? Just want to make sure I've done everything necessary on my end.

[swisspol]

I’m pretty this min version is defined elsewhere as well like in the Xcode configs so they would need to be modified as well

regarding changing the version number, it should be its own PR, thanks

[tinder-owenthomas]

I’m pretty this min version is defined elsewhere as well like in the Xcode configs so they would need to be modified as well

regarding changing the version number, it should be its own PR, thanks

@swisspol Addressed the issues. .pbxproj has been updated to reflect the minimum target of 9.0 and the podspec version bump has been reverted.

[tinder-owenthomas]

Any chance we can get these changes in for the next release @swisspol? As it is this Pod isn't compatible with Xcode 12.