Bump org.testcontainers:oracle-xe in /server/api-service

Bumps [org.testcontainers:oracle-xe](https://github.com/testcontainers/testcontainers-java) from 1.17.3 to 1.21.0.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.17.3...1.21.0)

---
updated-dependencies:
- dependency-name: org.testcontainers:oracle-xe
  dependency-version: 1.21.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

server/api-service/lowcoder-plugins/oraclePlugin/pom.xml

@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.testcontainers</groupId>
             <artifactId>oracle-xe</artifactId>
-            <version>1.17.3</version>
+            <version>1.21.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>