Bump org.pf4j:pf4j-spring from 0.8.0 to 0.9.0 (#1320)

Bumps [org.pf4j:pf4j-spring](https://github.com/pf4j/pf4j-spring) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/pf4j/pf4j-spring/releases)
- [Changelog](https://github.com/pf4j/pf4j-spring/blob/master/CHANGELOG.md)
- [Commits](pf4j/pf4j-spring@release-0.8.0...release-0.9.0)

---
updated-dependencies:
- dependency-name: org.pf4j:pf4j-spring
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

bom/pom.xml

@@ -76,7 +76,7 @@
 
     <!-- not used ehrbase but needed for the version plugin -->
     <log4j.version>2.23.1</log4j.version>
-    <pf4j-spring.version>0.8.0</pf4j-spring.version>
+    <pf4j-spring.version>0.9.0</pf4j-spring.version>
     <pf4j.version>3.11.1</pf4j.version>
     <commons-collections4.version>4.4</commons-collections4.version>