refactor: Rename non-functional uses of ripple(d) to xrpl(d) (#6676)

Co-authored-by: Bart <11445373+bthomee@users.noreply.github.com>

src/test/rpc/ServerInfo_test.cpp

@@ -33,7 +33,7 @@ public:
     makeValidatorConfig()
     {
         auto p = std::make_unique<Config>();
-        boost::format toLoad(R"rippleConfig(
+        boost::format toLoad(R"xrpldConfig(
 [validator_token]
 %1%
 
@@ -49,7 +49,7 @@ ip = 0.0.0.0
 port = 50052
 protocol = wss2
 admin = 127.0.0.1
-)rippleConfig");
+)xrpldConfig");
 
         p->loadFromString(boost::str(toLoad % validator_data::token % validator_data::public_key));