Reduce log level down to info when javax el is not available (#811)

Co-authored-by: Sebastian <[email protected]>

Author: laliluna

core/src/main/java/com/github/dozermapper/core/el/ELExpressionFactory.java

@@ -57,7 +57,7 @@ public static Boolean isSupported(ClassLoader classLoader) {
 
                 LOG.info("javax.el support is {}", isJavaxEL);
             } catch (IllegalStateException ex) {
-                LOG.warn("javax.el is not supported; {}", ex.getMessage());
+                LOG.info("javax.el is not supported; {}", ex.getMessage());
 
                 isJavaxEL = false;
             }