build(deps): bump testcontainers from 2.0.2 to 2.0.3

Bumps `testcontainers` from 2.0.2 to 2.0.3.

Updates `org.testcontainers:testcontainers` from 2.0.2 to 2.0.3
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@2.0.2...2.0.3)

Updates `org.testcontainers:testcontainers-junit-jupiter` from 2.0.2 to 2.0.3
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@2.0.2...2.0.3)

---
updated-dependencies:
- dependency-name: org.testcontainers:testcontainers
  dependency-version: 2.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.testcontainers:testcontainers-junit-jupiter
  dependency-version: 2.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ hamcrest = "3.0"
 jetbrains-annotations = "26.0.2-1"
 junit-jupiter = "6.0.1"
 mockito = "5.21.0"
-testcontainers = "2.0.2"
+testcontainers = "2.0.3"
 
 # Build tools
 checkstyle = "8.14"