Update temporal-sdks.mdx (#3983)

Changing the language on 3rd party SDKs to be more specific.

Author: tlalfano

docs/encyclopedia/temporal-sdks.mdx

@@ -64,7 +64,7 @@ Despite supporting multiple languages, and supporting many features, Temporal SD
 
 ### Third-party SDKs
 
-The following third-party SDKs exist but are not supported in Temporal's documentation:
+The following third-party SDKs exist but are not officially supported by Temporal:
 
 - [Swift](https://github.com/apple/swift-temporal-sdk) from [@Swift Community](https://github.com/apple)
 - [Haskell](https://github.com/MercuryTechnologies/hs-temporal-sdk) from [@MercuryTechnologies](https://github.com/MercuryTechnologies)