17298 Windows agent reports the version of custom exe plugin as n/a

For any exe plugin except for mk-sql.exe, the version is reported as n/a.
For mk-sql.exe, its actual version is reported.

Change-Id: Ifdafc4c28f87400e3d51f483687e1a876948502d

.werks/17298.md

@@ -0,0 +1,15 @@
+[//]: # (werk v2)
+# Windows agent reports the version of custom exe plugin as n/a
+
+key        | value
+---------- | ---
+date       | 2025-01-14T07:58:04+00:00
+version    | 2.5.0b1
+class      | feature
+edition    | cre
+component  | checks
+level      | 1
+compatible | yes
+
+For any exe plugin except for mk-sql.exe, the version is reported as n/a. 
+For mk-sql.exe, its actual version is reported.