Bump com.github.spotbugs in /components/serialization/multipart

Bumps com.github.spotbugs from 6.0.8 to 6.0.9.

---
updated-dependencies:
- dependency-name: com.github.spotbugs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

components/serialization/multipart/build.gradle

@@ -5,7 +5,7 @@ plugins {
     id 'maven-publish'
     id 'signing'
     id 'jacoco'
-    id 'com.github.spotbugs' version '6.0.8'
+    id 'com.github.spotbugs' version '6.0.9'
     id "com.diffplug.spotless" version "6.25.0"
 }