chore: bump version to 10.0.0-rc.0 w/ changelog

Author: jelbourn

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 10.0.0-rc.0 "concrete-cobbler" (2020-06-01)
+
+No changes from 10.0.0-next.2
+
 # 10.0.0-next.2 "wool-wind" (2020-05-26)
 
 ### cdk

package.json

@@ -46,7 +46,7 @@
     "merge": "ng-dev pr merge",
     "approve-api": "node ./scripts/approve-api-golden.js"
   },
-  "version": "10.0.0-next.2",
+  "version": "10.0.0-rc.0",
   "dependencies": {
     "@angular/animations": "^10.0.0-rc.2",
     "@angular/common": "^10.0.0-rc.2",