chore(): rename prepublish commands to prepare, to comply with https://docs.npmjs.com/misc/scripts#deprecation-note

Author: wbhob

package.json

@@ -12,10 +12,10 @@
     "build": "gulp build && gulp move",
     "build:lib": "gulp build --dist bundle",
     "copy-docs": "gulp copy-docs",
-    "prepublish": "npm run build:lib && npm run copy-docs",
-    "prepublish:rc": "npm run build:lib && npm run copy-docs",
-    "prepublish:next": "npm run build:lib && npm run copy-docs",
-    "prepublish:beta": "npm run build:lib && npm run copy-docs",
+    "prepare": "npm run build:lib && npm run copy-docs",
+    "prepare:rc": "npm run build:lib && npm run copy-docs",
+    "prepare:next": "npm run build:lib && npm run copy-docs",
+    "prepare:beta": "npm run build:lib && npm run copy-docs",
     "publish": "./node_modules/.bin/lerna publish --exact -m \"chore(@nestjs) publish %s release\"",
     "publish:rc": "./node_modules/.bin/lerna publish --npm-tag=rc -m \"chore(@nestjs) publish %s release\"",
     "publish:next": "./node_modules/.bin/lerna publish --npm-tag=next --skip-git -m \"chore(@nestjs) publish %s release\"",