Bump org.testcontainers:testcontainers-bom from 1.19.5 to 1.19.6 (#349)

Bumps [org.testcontainers:testcontainers-bom](https://github.com/testcontainers/testcontainers-java) from 1.19.5 to 1.19.6.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.5...1.19.6)

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

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

pg-index-health-testing/build.gradle.kts

@@ -9,7 +9,7 @@ dependencies {
     api(project(":pg-index-health-model"))
     api(project(":pg-index-health-jdbc-connection"))
     implementation(libs.apache.commons.dbcp2)
-    implementation(platform("org.testcontainers:testcontainers-bom:1.19.5"))
+    implementation(platform("org.testcontainers:testcontainers-bom:1.19.6"))
     implementation("org.testcontainers:testcontainers")
     implementation("org.testcontainers:postgresql")
     implementation(libs.awaitility)