[AppCheck] App Attest provider is supported by tvOS 15.0+ (#10093)

* [AppCheck] Update supported targets for AppAttestProvider

* CHANGELOG update

Author: ncooke3

FirebaseAppCheck/CHANGELOG.md

@@ -1,4 +1,5 @@
 # 9.5.0
+- [added] AppCheck's App Attest provider is available for tvOS 15.0+.
 - [added] AppCheck's DeviceCheck provider is available for watchOS 9.0+.
 
 # 9.0.0

FirebaseAppCheck/Sources/Public/FirebaseAppCheck/FIRAppCheckAvailability.h

@@ -46,29 +46,9 @@
 
 #pragma mark - App Attest
 
-// App Attest availability was extended to macOS and Mac Catalyst in Xcode 12.5.
-#if (defined(__IPHONE_14_5) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_14_5) || \
-    (defined(__MAC_11_3) && __MAC_OS_X_VERSION_MAX_ALLOWED >= __MAC_11_3) ||        \
-    (defined(__TVOS_14_5) && __TV_OS_VERSION_MAX_ALLOWED >= __TVOS_14_5)
-
-// Targets where `DCAppAttestService` is available to be used in preprocessor conditions.
-#define FIR_APP_ATTEST_SUPPORTED_TARGETS TARGET_OS_IOS || TARGET_OS_OSX
-
-// `AppAttestProvider` availability annotations
-#define FIR_APP_ATTEST_PROVIDER_AVAILABILITY \
-  API_AVAILABLE(macos(11.0), ios(14.0)) API_UNAVAILABLE(tvos, watchos)
-
-#else  // (defined(__IPHONE_14_5) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_14_5) || \
-          (defined(__MAC_11_3) && __MAC_OS_X_VERSION_MAX_ALLOWED >= __MAC_11_3) ||        \
-          (defined(__TVOS_14_5) && __TV_OS_VERSION_MAX_ALLOWED >= __TVOS_14_5)
-
 // Targets where `DCAppAttestService` is available to be used in preprocessor conditions.
-#define FIR_APP_ATTEST_SUPPORTED_TARGETS TARGET_OS_IOS && !TARGET_OS_MACCATALYST
+#define FIR_APP_ATTEST_SUPPORTED_TARGETS TARGET_OS_IOS || TARGET_OS_OSX || TARGET_OS_TV
 
 // `AppAttestProvider` availability annotations
 #define FIR_APP_ATTEST_PROVIDER_AVAILABILITY \
-  API_AVAILABLE(ios(14.0)) API_UNAVAILABLE(macos, tvos, watchos)
-
-#endif  // (defined(__IPHONE_14_5) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_14_5) || \
-          (defined(__MAC_11_3) && __MAC_OS_X_VERSION_MAX_ALLOWED >= __MAC_11_3) ||        \
-          (defined(__TVOS_14_5) && __TV_OS_VERSION_MAX_ALLOWED >= __TVOS_14_5)
+  API_AVAILABLE(macos(11.0), ios(14.0), tvos(15.0)) API_UNAVAILABLE(watchos)