SLING-10351 update Sling API to 2.23.4 (#13)

diff --git a/pom.xml b/pom.xml
index 051a713..e9118a7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -142,7 +142,7 @@
         <dependency>
             <groupId>org.apache.sling</groupId>
             <artifactId>org.apache.sling.api</artifactId>
-            <version>2.23.3-SNAPSHOT</version>
+            <version>2.23.4</version>
             <scope>provided</scope>
         </dependency>
         <dependency>