Bump org.assertj:assertj-core in /data-prepper-plugins/http-source (#5390)

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.27.0 to 3.27.3.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.27.0...assertj-build-3.27.3)

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

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Author: dependabot[bot]

data-prepper-plugins/http-source/build.gradle

@@ -20,7 +20,7 @@ dependencies {
     implementation 'software.amazon.awssdk:acm'
     implementation 'software.amazon.awssdk:s3'
     implementation 'software.amazon.awssdk:apache-client'
-    testImplementation 'org.assertj:assertj-core:3.27.0'
+    testImplementation 'org.assertj:assertj-core:3.27.3'
     testImplementation project(':data-prepper-api').sourceSets.test.output
     testImplementation project(':data-prepper-test:test-common')
     testImplementation project(':data-prepper-plugins:parse-json-processor')