build: update dependency standard-version to v8 [security]

Author: renovate[bot]

package.json

@@ -120,7 +120,7 @@
     "patch-package": "^6.1.2",
     "prettier": "1.19.1",
     "protractor": "~6.0.0",
-    "standard-version": "^7.0.0",
+    "standard-version": "^8.0.0",
     "tailwindcss": "^0.7.3",
     "ts-node": "~8.5.0",
     "tsickle": "^0.37.0",