Core Keeper GET /kvs/key/{key} should retruns results with the exact specified key

[jinlinGuan]

🐞 Bug Report

Affected Services [REQUIRED]

The issue is located in: core-keeper

Is this a regression?

no

Description and Minimal Reproduction [REQUIRED]

For example,
PUT key edgex%2Fv4%2Fdevice%2Dmodbus123

curl -X PUT http://localhost:59890/api/v3/kvs/key/edgex%2Fv4%2Fdevice%2Dmodbus123 -d '{"value":"test"}'

GET key edgex%2Fv4%2Fdevice%2Dmodbus

curl -X GET http://localhost:59890/api/v3/kvs/key/edgex%2Fv4%2Fdevice%2Dmodbus

🔥 Exception or Error

Should only return results with the key edgex%2Fv4%2Fdevice%2Dmodbus, but currently it also returns the results with the key edgex%2Fv4%2Fdevice%2Dmodbus123

🌍 Your Environment

Deployment Environment:

EdgeX Version [REQUIRED]:
main

Anything else relevant?