Bump testcontainers from 1.17.2 to 1.17.3 (#112)

Bumps [testcontainers](https://github.com/testcontainers/testcontainers-java) from 1.17.2 to 1.17.3.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/master/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.17.2...1.17.3)

---
updated-dependencies:
- dependency-name: org.testcontainers:testcontainers
  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>

browserup-proxy-rest-clients/build.gradle

@@ -137,7 +137,7 @@ dependencies {
     testImplementation 'org.awaitility:awaitility:4.2.0'
     testImplementation 'xyz.rogfam:littleproxy:2.0.9'
     testImplementation 'com.github.tomakehurst:wiremock-jre8:2.33.2'
-    testImplementation 'org.testcontainers:testcontainers:1.17.2'
+    testImplementation 'org.testcontainers:testcontainers:1.17.3'
 }
 
 openApiGenerateClients.mustRunAfter(resolve)