feat: upgrade to covidcast v2.0.0

Author: sgratzl

package-lock.json

@@ -7,7 +7,7 @@
     "highlight.js": "^10.6.0",
     "katex": "^0.12.0",
     "uikit": "^3.6.17",
-    "www-covidcast": "https://github.com/cmu-delphi/www-covidcast#0570547784690acd8dbd614056bb875ca588856b"
+    "www-covidcast": "https://github.com/cmu-delphi/www-covidcast/releases/download/v2.0.0/www-covidcast-2.0.0.tgz"
   },
   "devDependencies": {
     "bestzip": "^2.1.7",