build(docs-infra): update @angular/material to 10.2.2 (#39017)

This commit updates the version of Angular Components used in angular.io
to version 10.2.2.

NOTE:
The actual size increase for the main bundle in ViewEngine mode is 1.3KB
(because the actual size before this commit was 430423B, not 430008B as
seen in `aio-payloads.json`).

PR Close #39017

goldens/size-tracking/aio-payloads.json

@@ -3,7 +3,7 @@
     "master": {
       "uncompressed": {
         "runtime-es2015": 3037,
-        "main-es2015": 448223,
+        "main-es2015": 448243,
         "polyfills-es2015": 52685
       }
     }
@@ -21,7 +21,7 @@
     "master": {
       "uncompressed": {
         "runtime-es2015": 3157,
-        "main-es2015": 430008,
+        "main-es2015": 431750,
         "polyfills-es2015": 52415
       }
     }