Bump rollup from 1.26.2 to 1.26.3 (#29627)

Bumps [rollup](https://github.com/rollup/rollup) from 1.26.2 to 1.26.3.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v1.26.2...v1.26.3

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -10202,9 +10202,9 @@
       }
     },
     "rollup": {
-      "version": "1.26.2",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.26.2.tgz",
-      "integrity": "sha512-TLM8hlYP85TFFptYlXmr2VnhCLA8GaYXG4LBdWsHu9oBH/Wm5MMPAE9wsAnohfV21Dqq0ZvRHdmsKXomshaDSg==",
+      "version": "1.26.3",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.26.3.tgz",
+      "integrity": "sha512-8MhY/M8gnv3Q/pQQSWYWzbeJ5J1C5anCNY5BK1kV8Yzw9RFS0FF4lbLt+uyPO3wLKWXSXrhAL5pWL85TZAh+Sw==",
       "dev": true,
       "requires": {
         "@types/estree": "*",

package.json

@@ -123,7 +123,7 @@
     "npm-run-all": "^4.1.5",
     "popper.js": "^1.16.0",
     "postcss-cli": "^6.1.3",
-    "rollup": "^1.26.2",
+    "rollup": "^1.26.3",
     "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-istanbul": "^2.0.1",