[KYUUBI #6268] Specify logDir for RollingFile filePattern

# 🔍 Description
## Issue References 🔗

This pull request fixes #

## Describe Your Solution 🔧

We should specify `sys:logDir` for RollingFile filePattern, otherwise the log will be rolled to kyuubi work directory.

## Types of changes 🔖

- [X] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)

## Test Plan 🧪

#### Behavior Without This Pull Request ⚰️

#### Behavior With This Pull Request 🎉

#### Related Unit Tests

---

# Checklist 📝

- [X] This patch was not authored or co-authored using [Generative Tooling](https://www.apache.org/legal/generative-tooling.html)

**Be nice. Be informative.**

Closes #6268 from wForget/hotfix2.

Closes #6268

b599583be [wforget] Specify logDir for RollingFile filePattern

Authored-by: wforget <643348094@qq.com>
Signed-off-by: wforget <643348094@qq.com>
(cherry picked from commit a26156b8f4)
Signed-off-by: wforget <643348094@qq.com>

conf/log4j2.xml.template

@@ -35,7 +35,7 @@
             </Filters>
         </Console>
         <RollingFile name="restAudit" fileName="${sys:logDir}/${sys:restAuditLogPath}"
-                     filePattern="${sys:restAuditLogFilePattern}">
+                     filePattern="${sys:logDir}/${sys:restAuditLogFilePattern}">
             <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} %p %c{1}: %m%n%ex"/>
             <Policies>
                 <SizeBasedTriggeringPolicy size="51200KB" />
@@ -43,7 +43,7 @@
             <DefaultRolloverStrategy max="10"/>
         </RollingFile>
         <RollingFile name="k8sAudit" fileName="${sys:logDir}/${sys:k8sAuditLogPath}"
-                     filePattern="${sys:k8sAuditLogFilePattern}">
+                     filePattern="${sys:logDir}/${sys:k8sAuditLogFilePattern}">
             <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} %p %c{1}: %m%n%ex"/>
             <Policies>
                 <SizeBasedTriggeringPolicy size="51200KB" />