fix(distro): exclude Hikari's SLF4J from standalone webapps

- this pulled in SLF4J 2.0.0-alpha if built with Java 11 (not with Java 8)
- Our libraries are built and tested with SLF4J 1.7 so we should use that

related to CAM-13962

internal-dependencies/pom.xml

@@ -37,6 +37,17 @@
         <groupId>com.zaxxer</groupId>
         <artifactId>HikariCP</artifactId>
         <version>${version.hikaricp}</version>
+        <exclusions>
+          <!-- When building with Java 8, hikari has a dependency to SLF4j 1.7.
+          When building with Java 11 or higher, Hikari has a dependency to SLF4j 
+          2.0.0-alpha1 instead. We are therefore excluding this dependency here
+          and assume that it comes from other dependencies where it is used 
+          (for example camunda-commons-logging). -->
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>commons-logging</groupId>