update hardcoded version check

Author: lizk886

src/test/java/com/uid2/operator/StatsCollectorVerticleTest.java

@@ -112,8 +112,8 @@ void allValidPathsAllowed(Vertx vertx, VertxTestContext testContext) throws Inte
         var messages = getMessages();
         for(String endpoint: validEndpoints) {
             String withoutVersion = endpoint;
-            if (endpoint.startsWith("/v1/") || endpoint.startsWith("/v2/") || endpoint.startsWith("/v3/")) {
-                withoutVersion = endpoint.substring(4);
+            if (endpoint.matches("^/v\\d+/.*")) {
+                withoutVersion = endpoint.substring(endpoint.indexOf("/", 1) + 1);
             } else if (endpoint.startsWith("/")) {
                 withoutVersion = endpoint.substring(1);
             }