bugFix:instance Label parase failed when hostname contains servicename.

[lunescode]

What is the purpose of the change

bugFix:instance Label Parase failed when hostname contains servicename.
for example,
hostname: linkis-cg-engineconnmanager-0.linkis-svc.default.svc.cluster.local
serviceName:linkis-cg-engineconnmanager
str:linkis-cg-engineconnmanager-linkis-cg-engineconnmanager-0.linkis-svc.default.svc.cluster.local:9104
after setStringValue:
instance = -0.linkis-svc.default.svc.cluster.local:9104
correct value should be: linkis-cg-engineconnmanager-0.linkis-svc.default.svc.cluster.local:9104

Brief change log

• replace replace with replaceFirst in EMInstanceLabel.java and EngineInstanceLabel.java

Verifying this change

(Please pick either of the following options)
This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (no)
• Anything that affects deployment: ( no )
• The MGS(Microservice Governance Services), i.e., Spring Cloud Gateway, OpenFeign, Eureka.: (no)

Documentation

• Does this pull request introduce a new feature? ( no)
• If yes, how is the feature documented? (not applicable)

[peacewong]

LGTM.