Bump com.google.code.gson:gson from 2.11.0 to 2.13.1 in /examples

Bumps [com.google.code.gson:gson](https://github.com/google/gson) from 2.11.0 to 2.13.1.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/main/CHANGELOG.md)
- [Commits](google/gson@gson-parent-2.11.0...gson-parent-2.13.1)

---
updated-dependencies:
- dependency-name: com.google.code.gson:gson
  dependency-version: 2.13.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

examples/redis-backed-cache-testng/build.gradle

@@ -9,7 +9,7 @@ repositories {
 dependencies {
     compileOnly 'org.slf4j:slf4j-api:1.7.36'
     implementation 'redis.clients:jedis:6.0.0'
-    implementation 'com.google.code.gson:gson:2.11.0'
+    implementation 'com.google.code.gson:gson:2.13.1'
     implementation 'com.google.guava:guava:23.0'
     testImplementation 'org.testcontainers:testcontainers'
     testImplementation 'ch.qos.logback:logback-classic:1.3.14'

examples/redis-backed-cache/build.gradle

@@ -9,7 +9,7 @@ repositories {
 dependencies {
     compileOnly 'org.slf4j:slf4j-api:1.7.36'
     implementation 'redis.clients:jedis:6.0.0'
-    implementation 'com.google.code.gson:gson:2.11.0'
+    implementation 'com.google.code.gson:gson:2.13.1'
     implementation 'com.google.guava:guava:23.0'
     testImplementation 'org.testcontainers:testcontainers'
     testImplementation 'org.testcontainers:junit-jupiter'

examples/singleton-container/build.gradle

@@ -9,7 +9,7 @@ repositories {
 dependencies {
 
     implementation 'redis.clients:jedis:6.0.0'
-    implementation 'com.google.code.gson:gson:2.11.0'
+    implementation 'com.google.code.gson:gson:2.13.1'
     implementation 'com.google.guava:guava:23.0'
     compileOnly 'org.slf4j:slf4j-api:1.7.36'