feat: upgrade to covidcast v1.12.1

Author: sgratzl

package-lock.json

@@ -7,7 +7,7 @@
     "highlight.js": "^10.4.1",
     "katex": "^0.12.0",
     "uikit": "^3.5.9",
-    "www-covidcast": "github:cmu-delphi/www-covidcast#a4f828cf30eed46671c694ef3002acbfbc00369b"
+    "www-covidcast": "https://github.com/cmu-delphi/www-covidcast/releases/download/v1.12.1/www-covidcast-1.12.1.tgz"
   },
   "devDependencies": {
     "cpx": "^1.5.0",