[KYUUBI #5252] [MINOR] Remove incubator link

### _Why are the changes needed?_

https://github.com/search?q=repo%3Aapache%2Fkyuubi%20incubator-kyuubi&type=code

### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [ ] Add screenshots for manual tests if appropriate

- [ ] [Run test](https://kyuubi.readthedocs.io/en/master/contributing/code/testing.html#running-tests) locally before make a pull request

### _Was this patch authored or co-authored using generative AI tooling?_
No

Closes #5252 from cxzl25/remove_incubator_link.

Closes #5252

6485e0b [sychen] remove incubator link

Authored-by: sychen <[email protected]>
Signed-off-by: Cheng Pan <[email protected]>

Author: cxzl25

.idea/vcs.xml

@@ -118,7 +118,7 @@ Ready? [Getting Started](https://kyuubi.readthedocs.io/en/master/quick_start/) w
     <img src="http://isitmaintained.com/badge/resolution/apache/kyuubi.svg" />
   </a>
   <a href="https://github.com/apache/kyuubi/issues">
-    <img src="http://isitmaintained.com/badge/open/apache/incubator-kyuubi.svg" />
+    <img src="http://isitmaintained.com/badge/open/apache/kyuubi.svg" />
   </a>
   <a href="https://github.com/apache/kyuubi/pulls">
     <img src="https://img.shields.io/github/issues-pr-closed/apache/kyuubi?style=plastic" />