adjust expected slf4j-api version to actual one

This has again been overlooked, when upgrading the dependency.
Unfortunately, still nobody found the time to add an automated check for this to prevent this problem in the future.

Signed-off-by: Peter Gafert <peter.gafert@archunit.org>

buildSrc/src/main/resources/release_check/archunit.pom

@@ -50,7 +50,7 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>2.0.7</version>
+            <version>2.0.9</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>