Reverted dependency-check-maven-plugin to 8.4.3

Version 9.x Needs a nvdApiKey to be send with the mvn dependency check which requires an update on our 42 workflow repo first.

pom.xml

@@ -61,7 +61,7 @@
         <spring-boot.version>3.2.0</spring-boot.version>
         <totp-spring-boot-starter.version>1.7.1</totp-spring-boot-starter.version>
         <commons-io.version>2.11.0</commons-io.version>
-        <dependency-check-maven-plugin.version>9.0.3</dependency-check-maven-plugin.version>
+        <dependency-check-maven-plugin.version>8.4.3</dependency-check-maven-plugin.version>
         <jacoco-maven-plugin.version>0.8.8</jacoco-maven-plugin.version>
         <maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>
         <maven-gpg-plugin.version>3.0.1</maven-gpg-plugin.version>