bump podspec deployment targets

[jaredmixpanel]

Fix for...

➜  mixpanel-swift git:(master) pod trunk push Mixpanel-swift.podspec --allow-warnings                                                                                                                                                 git:(master|)
Updating spec repo `trunk`
Validating podspec
 -> Mixpanel-swift (4.0.4)
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  note: Using codesigning identity override: -
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  note: Building targets in dependency order
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 11.0 to 16.2.99. (in target 'Pods-App' from project 'Pods')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 11.0 to 16.2.99. (in target 'Mixpanel-swift' from project 'Pods')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  note: Metadata extraction skipped. No AppIntents.framework dependency found. (in target 'Mixpanel-swift' from project 'Pods')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  note: Metadata extraction skipped. No AppIntents.framework dependency found. (in target 'App' from project 'App')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  /var/folders/n7/w5f8m1yx2qq9w6g3_3kc3l8w0000gp/T/CocoaPods-Lint-20221214-54069-nlb0dg-Mixpanel-swift/App.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 11.0 to 16.2.99. (in target 'App' from project 'App')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  Pods.xcodeproj: warning: The tvOS Simulator deployment target 'TVOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 11.0 to 16.1.99. (in target 'Pods-App' from project 'Pods')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  Pods.xcodeproj: warning: The tvOS Simulator deployment target 'TVOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 11.0 to 16.1.99. (in target 'Mixpanel-swift' from project 'Pods')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  /var/folders/n7/w5f8m1yx2qq9w6g3_3kc3l8w0000gp/T/CocoaPods-Lint-20221214-54069-nlb0dg-Mixpanel-swift/App.xcodeproj: warning: The tvOS Simulator deployment target 'TVOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 11.0 to 16.1.99. (in target 'App' from project 'App')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  note: Using codesigning identity override:
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  Pods.xcodeproj: warning: The macOS deployment target 'MACOSX_DEPLOYMENT_TARGET' is set to 10.10, but the range of supported deployment target versions is 10.13 to 13.1.99. (in target 'Mixpanel-swift' from project 'Pods')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  Pods.xcodeproj: warning: The macOS deployment target 'MACOSX_DEPLOYMENT_TARGET' is set to 10.10, but the range of supported deployment target versions is 10.13 to 13.1.99. (in target 'Pods-App' from project 'Pods')
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  /var/folders/n7/w5f8m1yx2qq9w6g3_3kc3l8w0000gp/T/CocoaPods-Lint-20221214-54069-nlb0dg-Mixpanel-swift/App.xcodeproj: warning: The macOS deployment target 'MACOSX_DEPLOYMENT_TARGET' is set to 10.10, but the range of supported deployment target versions is 10.13 to 13.1.99. (in target 'App' from project 'App')
    - ERROR | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild: Returned an unsuccessful exit code. You can use `--verbose` for more information.
    - NOTE  | [Mixpanel-swift/Complete,Mixpanel-swift/Core] xcodebuild:  xcodebuild: error: Unable to find a destination matching the provided destination specifier:

[!] The spec did not pass validation, due to 1 error.

[zihejia]

LGTM