Update third_party.md with Philips Rpc implementation (#17035)

Closes #17035

COPYBARA_INTEGRATE_REVIEW=https://github.com/protocolbuffers/protobuf/pull/17035 from oguzcanoguz:main 2b9d55b485
PiperOrigin-RevId: 647681986

docs/third_party.md

@@ -153,6 +153,7 @@ GRPC (http://www.grpc.io/) is Google's RPC implementation for Protocol Buffers.
 *   https://github.com/ppissias/xsrpcj (Java)
 *   https://github.com/twitchtv/twirp (Multiple languages)
 *   https://github.com/icerpc/icerpc-csharp (C#)
+*   https://philips-software.github.io/amp-embedded-infra-lib (C++, C#, Java)
 
 Inactive: