build: Bump spock from 1.16.2 to 1.16.3

Bumps [spock](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](testcontainers/testcontainers-java@1.16.2...1.16.3)

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

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

acme/build.gradle

@@ -22,7 +22,7 @@ dependencies {
 
     implementation "io.netty:netty-tcnative-boringssl-static:$tcnativeBoringsslStatic"
 
-    testImplementation "org.testcontainers:spock:1.16.2"
+    testImplementation "org.testcontainers:spock:1.16.3"
     testImplementation("io.micronaut:micronaut-http-client")
     testImplementation("org.codehaus.groovy:groovy-dateutil:$groovyVersion")
     testImplementation("org.codehaus.groovy:groovy-json:$groovyVersion")