Bump org.testcontainers:testcontainers-bom from 1.19.2 to 1.19.3

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

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -115,7 +115,7 @@ ext {
     springSecurityVersion = '6.2.0'
     springVersion = '6.1.2'
     springWsVersion = '4.0.9'
-    testcontainersVersion = '1.19.2'
+    testcontainersVersion = '1.19.3'
     tomcatVersion = '10.1.17'
     xmlUnitVersion = '2.9.1'
     xstreamVersion = '1.4.20'