chore: update scripts/update-java.sh to 8.21.0

Author: web-flow

CHANGELOG.md

@@ -4,9 +4,9 @@
 
 ### Dependencies
 
-- Bump Java SDK from v8.17.0 to v8.20.0 ([#454](https://github.com/getsentry/sentry-kotlin-multiplatform/pull/454))
-  - [changelog](https://github.com/getsentry/sentry-java/blob/main/CHANGELOG.md#8200)
-  - [diff](https://github.com/getsentry/sentry-java/compare/8.17.0...8.20.0)
+- Bump Java SDK from v8.17.0 to v8.21.0 ([#454](https://github.com/getsentry/sentry-kotlin-multiplatform/pull/454), [#457](https://github.com/getsentry/sentry-kotlin-multiplatform/pull/457))
+  - [changelog](https://github.com/getsentry/sentry-java/blob/main/CHANGELOG.md#8210)
+  - [diff](https://github.com/getsentry/sentry-java/compare/8.17.0...8.21.0)
 
 ## 0.18.0
 

buildSrc/src/main/java/Config.kt

@@ -33,7 +33,7 @@ object Config {
     object Libs {
         val kotlinStd = "org.jetbrains.kotlin:kotlin-stdlib"
 
-        val sentryJavaVersion = "8.20.0"
+        val sentryJavaVersion = "8.21.0"
         val sentryAndroid = "io.sentry:sentry-android:$sentryJavaVersion"
         val sentryJava = "io.sentry:sentry:$sentryJavaVersion"