Update doc for bump-bulk-cdk-version (#69244)

Author: frifriSF59

.github/pr-welcome-internal.md

@@ -26,7 +26,7 @@ Airbyte Maintainers (that's you!) can execute the following slash commands on yo
 - JVM connectors:
   - `/update-connector-cdk-version connector=<CONNECTOR_NAME>` - Updates the specified connector to the latest CDK version.
     Example: `/update-connector-cdk-version connector=destination-bigquery`
-  - `/bump-bulk-cdk-version type=patch changelog='foo'` - Bump the Bulk CDK's version. `type` can be major/minor/patch.
+  - `/bump-bulk-cdk-version bump=patch changelog='foo'` - Bump the Bulk CDK's version. `bump` can be major/minor/patch.
 - Python connectors:
   - `/poe connector source-example lock` - Run the Poe `lock` task on the `source-example` connector, committing the results back to the branch.
   - `/poe source example lock` - Alias for `/poe connector source-example lock`.