build(deps): bump org.testcontainers:localstack from 1.20.2 to 1.20.3

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

build.gradle

@@ -132,7 +132,7 @@ testing {
             dependencies {
                 implementation project
                 implementation 'org.testcontainers:junit-jupiter:1.20.2'
-                implementation 'org.testcontainers:localstack:1.20.2'
+                implementation 'org.testcontainers:localstack:1.20.3'
                 implementation 'org.testcontainers:testcontainers:1.20.2'
             }
         }