DOC: fix misspelled keyword "resolve_retries" in resolvers

"resolve_retries" was spelled "resolve_retires".
diff --git a/doc/configuration.txt b/doc/configuration.txt
index b739df7..637b226 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -15407,7 +15407,7 @@
   2. When the fallback on the query type was done (or not applicable), HAProxy
      retries the original DNS query, with the preferred query type.
 
-  3. HAProxy retries previous steps <resolve_retires> times. If no valid
+  3. HAProxy retries previous steps <resolve_retries> times. If no valid
      response is received after that, it stops the DNS resolution and reports
      the error.