chore: move flag to version:create flags

Author: ravipanguluri

command-snapshot.json

@@ -400,8 +400,7 @@
       "validateschema",
       "versiondescription",
       "versionname",
-      "versionnumber",
-      "generate-pkg-zip"
+      "versionnumber"
     ],
     "flagChars": ["a", "b", "c", "d", "e", "f", "j", "k", "n", "p", "r", "s", "t", "v", "w", "x"],
     "flags": [
@@ -433,7 +432,8 @@
       "version-description",
       "version-name",
       "version-number",
-      "wait"
+      "wait",
+      "generate-pkg-zip"
     ],
     "plugin": "@salesforce/plugin-packaging"
   },