HV-2015 Add an explicit optional dependency on EL

Author: marko-bekhta

engine/pom.xml

@@ -56,6 +56,12 @@
         <!--
         Provided dependencies
         -->
+        <dependency>
+            <groupId>jakarta.el</groupId>
+            <artifactId>jakarta.el-api</artifactId>
+            <scope>provided</scope>
+            <optional>true</optional>
+        </dependency>
         <dependency>
             <groupId>org.glassfish.expressly</groupId>
             <artifactId>expressly</artifactId>