Bump org.testcontainers:testcontainers from 1.20.2 to 1.20.3 (#192)

Bumps [org.testcontainers:testcontainers](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
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle.kts

@@ -42,7 +42,7 @@ repositories {
 }
 
 dependencies {
-  implementation("org.testcontainers:testcontainers:1.20.2") 
+  implementation("org.testcontainers:testcontainers:1.20.3") 
   testImplementation("org.junit.jupiter:junit-jupiter:5.11.3")
   testImplementation("org.junit.jupiter:junit-jupiter-params:5.11.3")
   testImplementation("ch.qos.logback:logback-classic:1.5.12")