patch 8.2.4066: Vim9: imported autoload script loaded again

Problem:    Vim9: imported autoload script loaded again.
Solution:   Do not create a new imported_T every time.
diff --git a/src/version.c b/src/version.c
index e329775..24d2f08 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4066,
+/**/
     4065,
 /**/
     4064,