### Why are the changes needed?
To filter out server only configs with prefixes.
For some kyuubi configs, there is no related defined ConfigEntry, and we can not filter out them and have to populate them to engien end.
For example:
```
kyuubi.kubernetes.28.master.address=k8s://master
kyuubi.backend.server.event.kafka.broker=localhost:9092
kyuubi.metadata.store.jdbc.driver=com.mysql.cj.jdbc.Driver
kyuubi.metadata.store.jdbc.datasource.maximumPoolSize=600
kyuubi.metadata.store.jdbc.datasource.minimumIdle=100
kyuubi.metadata.store.jdbc.datasource.idleTimeout=60000
```
This PR supports to exclude them by setting:
```
kyuubi.config.server.only.prefixes=kyuubi.backend.server.event.kafka.,kyuubi.metadata.store.jdbc.datasource.,kyuubi.kubernetes.28.
```
### How was this patch tested?
UT
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes#7055 from turboFei/server_only_configs.
Closes#7055
6c804ff91 [Cheng Pan] Update kyuubi-common/src/main/scala/org/apache/kyuubi/config/KyuubiConf.scala
bd391a664 [Wang, Fei] exclude
Lead-authored-by: Fei Wang <fwang12@ebay.com>
Co-authored-by: Cheng Pan <pan3793@gmail.com>
Co-authored-by: Wang, Fei <fwang12@ebay.com>
Signed-off-by: Wang, Fei <fwang12@ebay.com>
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