chore: bump dev.openfeature:sdk (#2809)

Bumps [dev.openfeature:sdk](https://github.com/open-feature/java-sdk) from 1.12.2 to 1.13.0.
- [Release notes](https://github.com/open-feature/java-sdk/releases)
- [Changelog](https://github.com/open-feature/java-sdk/blob/main/CHANGELOG.md)
- [Commits](open-feature/java-sdk@v1.12.2...v1.13.0)

---
updated-dependencies:
- dependency-name: dev.openfeature:sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

examples/openfeature_kotlin_server/kotlin-app/build.gradle.kts

@@ -17,7 +17,7 @@ repositories {
 dependencies {
     testImplementation(kotlin("test"))
     implementation("dev.openfeature.contrib.providers:go-feature-flag:0.4.0")
-    implementation("dev.openfeature:sdk:1.12.2")
+    implementation("dev.openfeature:sdk:1.13.0")
 }
 
 tasks.test {