[Fix][Connector-V2] Fix StarRocksCatalogTest#testCatalog() NPE

[xiaochen-zhou]

Purpose of this pull request

Fix StarRocksCatalogTest#testCatalog() NPE

Does this PR introduce any user-facing change?

How was this patch tested?

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config
• Update the release-note.

[Hisoka-X]

Hi @xiaochen-zhou , could you help to move this part test case into

seatunnel/seatunnel-e2e/seatunnel-connector-v2-e2e/connector-starrocks-e2e/src/test/java/org/apache/seatunnel/e2e/connector/starrocks/StarRocksIT.java

Line 413 in 30aa485

public void testCatalog() {

?

[xiaochen-zhou]

Hi @xiaochen-zhou , could you help to move this part test case into

seatunnel/seatunnel-e2e/seatunnel-connector-v2-e2e/connector-starrocks-e2e/src/test/java/org/apache/seatunnel/e2e/connector/starrocks/StarRocksIT.java

Line 413 in 30aa485

public void testCatalog() {

?

OK

[xiaochen-zhou]

Hi @xiaochen-zhou , could you help to move this part test case into

seatunnel/seatunnel-e2e/seatunnel-connector-v2-e2e/connector-starrocks-e2e/src/test/java/org/apache/seatunnel/e2e/connector/starrocks/StarRocksIT.java

Line 413 in 30aa485

public void testCatalog() {

?

Done.