Make MySQL8 work with MySQL 4.1 wire protocol

It seems compatible so far, but it was defaulting to 4.0 otherwise -
which mistyped integers coming from the DB.

Co-authored-by: Gustavo Giráldez <ggiraldez@manas.tech>

Author: matiasgarciaisaia

src/mysql_conn.erl

@@ -879,12 +879,15 @@ normalize_version([$4,$.,$1|_T], _LogFun) ->
     ?MYSQL_4_1;
 normalize_version([$5|_T], _LogFun) ->
     %% MySQL version 5.x protocol is compliant with MySQL 4.1.x:
-    ?MYSQL_4_1; 
+    ?MYSQL_4_1;
+normalize_version([$8|_T], _LogFun) ->
+    %% MySQL version 8.0 protocol is compliant with MySQL 4.1.x:
+    ?MYSQL_4_1;
 normalize_version(_Other, LogFun) ->
     ?Log(LogFun, error, "MySQL version not supported: MySQL Erlang module "
 	 "might not work correctly."),
-    %% Error, but trying the oldest protocol anyway:
-    ?MYSQL_4_0.
+    %% Error, but assume newest protocol just in case:
+    ?MYSQL_4_1.
 
 %%--------------------------------------------------------------------
 % Function: get_field_datatype(DataType)