patch 9.0.0354: MS-Windows: starting a python server for test sometimes fails

Problem:    MS-Windows: starting a python server for test sometimes fails.
Solution:   Increase the waiting time for the port.

src/testdir/shared.vim

@@ -62,8 +62,8 @@ endfunc
 " Read the port number from the Xportnr file.
 func GetPort()
   let l = []
-  " with 200 it sometimes failed
-  for i in range(400)
+  " with 200 it sometimes failed, with 400 is rarily failed
+  for i in range(600)
     try
       let l = readfile("Xportnr")
     catch

src/version.c

@@ -707,6 +707,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    354,
 /**/
     353,
 /**/