Bump okhttp from 3.14.8 to 4.7.2 in /examples (#2915)

Bumps [okhttp](https://github.com/square/okhttp) from 3.14.8 to 4.7.2.
- [Release notes](https://github.com/square/okhttp/releases)
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-3.14.8...parent-4.7.2)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

examples/linked-container/build.gradle

@@ -7,7 +7,7 @@ repositories {
 }
 dependencies {
     compileOnly 'org.slf4j:slf4j-api:1.7.30'
-    implementation 'com.squareup.okhttp3:okhttp:3.14.8'
+    implementation 'com.squareup.okhttp3:okhttp:4.7.2'
     implementation 'org.json:json:20180813'
     testImplementation 'org.postgresql:postgresql:42.2.14'
     testImplementation 'ch.qos.logback:logback-classic:1.2.3'