fix: enable EXHORT_DEBUG also from system property (#91)

Signed-off-by: Zvi Grinberg <[email protected]>

src/main/java/com/redhat/exhort/impl/ExhortApi.java

@@ -317,7 +317,7 @@ private static void logExhortRequestId(HttpResponse response) {
   }
 
   public static boolean debugLoggingIsNeeded() {
-    return Boolean.parseBoolean(Objects.requireNonNullElse(System.getenv("EXHORT_DEBUG"), "false"));
+    return Boolean.parseBoolean(getStringValueEnvironment("EXHORT_DEBUG","false"));
   }
 
   @Override