[KYUUBI #3210] [DOCS] Mention Kyuubi Spark SQL extension supports Spark 3.3

### _Why are the changes needed?_

Update outdated docs.

### _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.apache.org/docs/latest/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #3210 from pan3793/spark-extension.

Closes #3210

5e5ebd3 [Cheng Pan] Mention Kyuubi Spark SQL extension supports Spark 3.3

Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>

Author: pan3793

docs/extensions/engines/spark/rules.md

@@ -51,6 +51,7 @@ And don't worry, Kyuubi will support the new Apache Spark version in the future.
 | -------------------------- | -------------------------- | ---------------- | ---------------- | --------------------------------- | -------------
 | kyuubi-extension-spark-3-1 | 3.1.x                      | 1.3.0-incubating | N/A              | 1.3.0-incubating                  | spark-3.1
 | kyuubi-extension-spark-3-2 | 3.2.x                      | 1.4.0-incubating | N/A              | 1.4.0-incubating                  | spark-3.2
+| kyuubi-extension-spark-3-3 | 3.3.x                      | 1.6.0-incubating | N/A              | 1.6.0-incubating                  | spark-3.3
 
 1. Check the matrix that if you are using the supported Spark version, and find the corresponding Kyuubi Spark SQL Extension jar
 2. Get the Kyuubi Spark SQL Extension jar