Ensure clean install before publishing

To avoid accidentally running tests against an invalid tree after EG.
switching branch.

package.json

@@ -41,7 +41,8 @@
     "dist/**/*.d.ts"
   ],
   "scripts": {
-    "clean": "rm -rf dist",
+    "clear-dist": "rm -rf dist",
+    "clean-install": "rm -rf node_modules && npm install",
     "genversion": "genversion --semi --double --es6 lib/version.ts",
     "build": "npm run genversion && tsc",
     "watch": "npm run genversion && tsc --watch",
@@ -54,7 +55,7 @@
     "test:run-all-specs": "mocha --timeout 0 test/run-all-specs.ts",
     "test:integration": "cucumber-js",
     "test:actions:examples": "xvfb-run bash -c 'act -W \".github/workflows/examples-branch.yml\" --use-gitignore=false --artifact-server-path=tmp/artifacts --env DISPLAY=$DISPLAY'",
-    "prepublishOnly": "npm run clean && npm run build && npm run test"
+    "prepublishOnly": "npm run clean-install && npm run clear-dist && npm run build && npm run test"
   },
   "dependencies": {
     "@badeball/cypress-configuration": "^6.1.1",