release: cut the v9.1.0 release

CHANGELOG.md

@@ -1,3 +1,8 @@
+<a name="9.1.0"></a>
+# [9.1.0](https://github.com/angular/angular/compare/9.1.0-rc.2...9.1.0) (2020-03-25)
+
+Promoted `9.1.0-rc.2` to `9.1.0`.
+
 <a name="9.1.0-rc.2"></a>
 # [9.1.0-rc.2](https://github.com/angular/angular/compare/9.1.0-rc.1...9.1.0-rc.2) (2020-03-24)
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-srcs",
-  "version": "9.1.0-rc.2",
+  "version": "9.1.0",
   "private": true,
   "description": "Angular - a web framework for modern web apps",
   "homepage": "https://github.com/angular/angular",