Bump org.apache.xbean:xbean-asm9-shaded from 4.27 to 4.28 (#560)

Bumps org.apache.xbean:xbean-asm9-shaded from 4.27 to 4.28.

---
updated-dependencies:
- dependency-name: org.apache.xbean:xbean-asm9-shaded
  dependency-version: '4.28'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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spring-data-opensearch/build.gradle.kts

@@ -51,7 +51,7 @@ dependencies {
   testImplementation("org.apache.openwebbeans:openwebbeans-spi:2.0.27:jakarta")
   testImplementation("org.apache.openwebbeans:openwebbeans-se:2.0.27:jakarta")
   testImplementation("javax.servlet:javax.servlet-api:4.0.1")
-  testImplementation("org.apache.xbean:xbean-asm9-shaded:4.27")
+  testImplementation("org.apache.xbean:xbean-asm9-shaded:4.28")
   testImplementation("io.specto:hoverfly-java-junit5:0.20.2")
   testImplementation("org.skyscreamer:jsonassert:1.5.3")
   testImplementation("jakarta.annotation:jakarta.annotation-api:2.1.1")