[bitnami/kes] test: ✅ Use array for exec

Signed-off-by: Javier J. Salmerón García <javier.salmeron@broadcom.com>

.vib/kes/goss/kes.yaml

@@ -7,14 +7,18 @@
 {{- $version = regexReplaceAll "([0-9]+)-([0-9])-([0-9]+)" $version "$1-0$2-$3" }}
 command:
   check-kes-version:
-    exec: kes --version
+    exec:
+      - kes
+      - --version
     exit-status: 0
     stdout:
       # We need to add Version because using the variable alone converts it to a Date
       # object, causing issues in the stdout matching
       - /Version.*{{$version}}/
   check-kes-help:
-    exec: kes --help
+    exec:
+      - kes
+      - --help
     exit-status: 2
     stderr:
       - Start a KES server