attestCosState to include gpu attestation information (#719)

Author: Sibcgh

go.mod

@@ -5,6 +5,7 @@ go 1.24.0
 toolchain go1.24.13
 
 require (
+	github.com/GoogleCloudPlatform/confidential-space/server v0.0.0-20260307011055-895ec9019dd7
 	github.com/google/go-attestation v0.5.1
 	github.com/google/go-cmp v0.7.0
 	github.com/google/go-sev-guest v0.14.0

go.sum

@@ -72,6 +72,8 @@ github.com/Azure/go-autorest v12.0.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSW
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/GoogleCloudPlatform/cloudsql-proxy v0.0.0-20191009163259-e802c2cb94ae/go.mod h1:mjwGPas4yKduTyubHvD1Atl9r1rUq8DfVy+gkVvZ+oo=
+github.com/GoogleCloudPlatform/confidential-space/server v0.0.0-20260307011055-895ec9019dd7 h1:Iz7wjnn93xcmPlUS/9ue7CeyH7yvcxHAXKu+2lE2/is=
+github.com/GoogleCloudPlatform/confidential-space/server v0.0.0-20260307011055-895ec9019dd7/go.mod h1:sNFt/HcARjGxR3/2s7hwlqvHlUzXdaCiS62u7A4rnHg=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
 github.com/Masterminds/semver v1.4.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=