Bump com.squareup.okhttp3:okhttp from 5.2.1 to 5.3.0

Bumps [com.squareup.okhttp3:okhttp](https://github.com/square/okhttp) from 5.2.1 to 5.3.0.
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-5.2.1...parent-5.3.0)

---
updated-dependencies:
- dependency-name: com.squareup.okhttp3:okhttp
  dependency-version: 5.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

build.gradle

@@ -302,8 +302,8 @@ dependencies {
     implementation("com.install4j:install4j-runtime:11.0.1")
 
     testImplementation("org.instancio:instancio-junit:5.5.1")
-    testImplementation("com.squareup.okhttp3:okhttp:5.2.1")
-    testImplementation("com.squareup.okhttp3:mockwebserver:5.2.1")
+    testImplementation("com.squareup.okhttp3:okhttp:5.3.0")
+    testImplementation("com.squareup.okhttp3:mockwebserver:5.3.0")
     testImplementation("io.projectreactor:reactor-test")
     testImplementation("org.testfx:testfx-core:4.0.18") {
         exclude module: 'guava'