chore(deps): update dependency rollup to v2.26.4

Author: renovate-bot

package.json

@@ -119,7 +119,7 @@
     "clang-format": "1.4.0",
     "jasmine": "3.6.1",
     "prettier": "2.0.5",
-    "rollup": "2.23.1",
+    "rollup": "2.26.4",
     "rollup-plugin-commonjs": "10.1.0",
     "tslint": "6.1.2",
     "tslint-eslint-rules": "5.4.0",

yarn.lock

@@ -1290,10 +1290,10 @@ rollup-pluginutils@^2.8.1:
   dependencies:
     estree-walker "^0.6.1"
 
-rollup@2.23.1:
-  version "2.23.1"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.23.1.tgz#d458d28386dc7660c2e8a4978bea6f9494046c20"
-  integrity sha512-Heyl885+lyN/giQwxA8AYT2GY3U+gOlTqVLrMQYno8Z1X9lAOpfXPiKiZCyPc25e9BLJM3Zlh957dpTlO4pa8A==
+rollup@2.26.4:
+  version "2.26.4"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.26.4.tgz#a8350fd6bd56fce9873a7db2bd9547d40de3992b"
+  integrity sha512-6+qsGuP0MXGd7vlYmk72utm1MrgZj5GfXibGL+cRkKQ9+ZL/BnFThDl0D5bcl7AqlzMjAQXRAwZX1HVm22M/4Q==
   optionalDependencies:
     fsevents "~2.1.2"