build: bump to latest MDC Canary to fix regression (#18281)

We recently updated to the latest MDC Canary to fix some build issues and be able to use the feature targeting for the form field, but it also came in with a regression. These changes update to a newer Canary version that has a fix for the regression (material-components/material-components-web#5512).

Author: crisbeto

package.json

@@ -54,7 +54,7 @@
     "@types/youtube": "^0.0.38",
     "@webcomponents/custom-elements": "^1.1.0",
     "core-js": "^2.6.9",
-    "material-components-web": "5.0.0-canary.6092f71ee.0",
+    "material-components-web": "5.0.0-canary.80a4d326f.0",
     "rxjs": "^6.5.3",
     "systemjs": "0.19.43",
     "tslib": "^1.10.0",