HttpClientStreamHttpTransport: add authorization error handler #218

Job	Run time
Client Conformance (elicitation-sep1034-client-defaults)	40s
Client Conformance (initialize)	47s
Client Conformance (sse-retry)	49s
Auth Conformance (auth/metadata-var1)	56s
Server Conformance	1m 2s
Auth Conformance (auth/scope-from-www-authenticate)	47s
Auth Conformance (auth/scope-omitted-when-undefined)	46s
Client Conformance (tools_call)	47s
Auth Conformance (auth/scope-retry-limit)	1m 1s
Auth Conformance (auth/token-endpoint-auth-basic)	52s
Auth Conformance (auth/scope-step-up)	47s
Auth Conformance (auth/metadata-var2)	55s
Auth Conformance (auth/metadata-default)	53s
Auth Conformance (auth/basic-cimd)	45s
Auth Conformance (auth/scope-from-scopes-supported)	49s
Auth Conformance (auth/token-endpoint-auth-post)	50s
Auth Conformance (auth/token-endpoint-auth-none)	47s
Auth Conformance (auth/pre-registration)	49s
Auth Conformance (auth/metadata-var3)	47s
	15m 49s

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