Upgrade @cypress/webpack-preprocessor and move dev deps to devDeps

Started getting a cryptic `TypeError: err.replace is not a function`
error when trying to run cypress tests locally.

As per suggestion in this GH comment, upgraded and solved problem:

cypress-io/cypress#8948 (comment)

spa/package.json

@@ -6,7 +6,6 @@
   "dependencies": {
     "@analytics/google-analytics": "^0.5.3",
     "@craco/craco": "^5.9.0",
-    "@cypress/webpack-preprocessor": "4.1.5",
     "@date-io/date-fns": "^1.3.13",
     "@fortawesome/fontawesome-svg-core": "^1.2.35",
     "@fortawesome/free-solid-svg-icons": "^5.15.3",
@@ -29,7 +28,6 @@
     "draftjs-to-html": "^0.9.1",
     "eslint": "^7.25.0",
     "eslint-config-prettier": "^8.3.0",
-    "eslint-plugin-cypress": "^2.11.3",
     "find-webpack": "^2.2.1",
     "framer-motion": "^5.3.0",
     "html-to-draftjs": "^1.5.0",
@@ -126,8 +124,10 @@
   "devDependencies": {
     "@cypress/react": "^5.9.4",
     "@cypress/webpack-dev-server": "1.7.0",
+    "@cypress/webpack-preprocessor": "^5.11.1",
     "cypress": "^8.5.0",
     "cypress-localstorage-commands": "^1.7.0",
-    "eslint-plugin-chai-friendly": "^0.7.1"
+    "eslint-plugin-chai-friendly": "^0.7.1",
+    "eslint-plugin-cypress": "^2.11.3"
   }
 }