chore(deps): Bump org.testcontainers:testcontainers-bom (#434)

Bumps [org.testcontainers:testcontainers-bom](https://github.com/testcontainers/testcontainers-java) from 1.20.2 to 1.20.3.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.2...1.20.3)

---
updated-dependencies:
- dependency-name: org.testcontainers:testcontainers-bom
  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>

dictum-bom/pom.xml

@@ -17,7 +17,7 @@
         <annotations.version>26.0.1</annotations.version>
         <junit5.version>5.11.3</junit5.version>
         <javax.annotation-api.version>1.3.2</javax.annotation-api.version>
-        <testcontainers.version>1.20.2</testcontainers.version>
+        <testcontainers.version>1.20.3</testcontainers.version>
         <assertj-core.version>3.26.3</assertj-core.version>
         <versions-maven-plugin.version>2.17.1</versions-maven-plugin.version>
     </properties>