Bump org.testcontainers:testcontainers from 1.19.2 to 1.19.3 (#21)

Bumps [org.testcontainers:testcontainers](https://github.com/testcontainers/testcontainers-java) from 1.19.2 to 1.19.3.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.2...1.19.3)

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

build.gradle.kts

@@ -29,7 +29,7 @@ dependencies {
 	implementation("org.jetbrains.kotlin:kotlin-reflect")
 	implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
 
-	implementation("org.testcontainers:testcontainers:1.19.2")
+	implementation("org.testcontainers:testcontainers:1.19.3")
 
 	testImplementation("org.springframework.boot:spring-boot-starter-test")
 	testImplementation("com.nhaarman:mockito-kotlin:1.6.0")