Bump testcontainers from 1.16.2 to 1.16.3 in /core

Bumps [testcontainers](https://github.com/testcontainers/testcontainers-java) from 1.16.2 to 1.16.3.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/master/CHANGELOG.md)
- [Commits](1.16.2...1.16.3)

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

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

Author: dependabot[bot]

core/build.gradle

@@ -53,7 +53,7 @@ configurations.all {
 }
 
 dependencies {
-    baseline 'org.testcontainers:testcontainers:1.16.2', {
+    baseline 'org.testcontainers:testcontainers:1.16.3', {
         exclude group: "*", module: "*"
     }