NOISSUE - Attested TLS (#99)

* added initial code for attested TLS

* added client validation and verification

* fixed bugs for attested TLS

* updated README for manual testing

* fixed CI errors

* removed SNP pollicy from agent config

* added attested TLS config param to AgentConfig

* generated manager.pb.go for protoc v25.2

* updated proto-gen-go version on CI

* generated agent.pb.go to match newest proto gen version

* define errors for error handling

* fixed comments

.github/workflows/checkproto.yaml

@@ -34,7 +34,7 @@ jobs:
       - name: Set up protoc
         run: |
           PROTOC_VERSION=25.3
-          PROTOC_GEN_VERSION=v1.31.0
+          PROTOC_GEN_VERSION=v1.33.0
           PROTOC_GRPC_VERSION=v1.3.0
 
           # Download and install protoc