[feature/performance] Fail fast when doing remote transport calls inside incoming request contexts (#1119)

* [feature/performance] Fail fast when doing remote transport calls inside incoming request contexts

* [chore] Reduce outgoing request timeout to 15s

* log error messages when fastfailing

* use context.Value() instead of wrapped context, wrap error with fastfail instead of extra log entry

* add fast-fail context key test

Signed-off-by: kim <grufwub@gmail.com>
Co-authored-by: kim <grufwub@gmail.com>

internal/httpclient/client.go

@@ -95,7 +95,7 @@ func New(cfg Config) *Client {
 	var c Client
 
 	d := &net.Dialer{
-		Timeout:   30 * time.Second,
+		Timeout:   15 * time.Second,
 		KeepAlive: 30 * time.Second,
 		Resolver:  &net.Resolver{},
 	}