Update ./modules.json (#3510)

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

Author: BernieWhite

modules.json

@@ -6,7 +6,7 @@
   },
   "devDependencies": {
     "Pester": {
-      "version": "5.6.0"
+      "version": "5.7.1"
     },
     "platyPS": {
       "version": "0.14.2"