Bump testcontainersVersion from 2.0.2 to 2.0.3 (#423)

Bumps `testcontainersVersion` 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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

build.gradle

@@ -19,7 +19,7 @@ apply from: "${rootProject.projectDir}/publishing.gradle"
 apply from: "${rootProject.projectDir}/codegen.gradle"
 
 ext {
-    testcontainersVersion = "2.0.2"
+    testcontainersVersion = "2.0.3"
     junitVersion = "5.11.4"
 }