Bump rollup from 2.70.1 to 2.78.1

Bumps [rollup](https://github.com/rollup/rollup) from 2.70.1 to 2.78.1.
- [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/v2.70.1...v2.78.1)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package-lock.json

@@ -1550,9 +1550,9 @@
       }
     },
     "node_modules/rollup": {
-      "version": "2.70.1",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.70.1.tgz",
-      "integrity": "sha512-CRYsI5EuzLbXdxC6RnYhOuRdtz4bhejPMSWjsFLfVM/7w/85n2szZv6yExqUXsBdz5KT8eoubeyDUDjhLHEslA==",
+      "version": "2.78.1",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.78.1.tgz",
+      "integrity": "sha512-VeeCgtGi4P+o9hIg+xz4qQpRl6R401LWEXBmxYKOV4zlF82lyhgh2hTZnheFUbANE8l2A41F458iwj2vEYaXJg==",
       "dev": true,
       "bin": {
         "rollup": "dist/bin/rollup"
@@ -3149,9 +3149,9 @@
       }
     },
     "rollup": {
-      "version": "2.70.1",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.70.1.tgz",
-      "integrity": "sha512-CRYsI5EuzLbXdxC6RnYhOuRdtz4bhejPMSWjsFLfVM/7w/85n2szZv6yExqUXsBdz5KT8eoubeyDUDjhLHEslA==",
+      "version": "2.78.1",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.78.1.tgz",
+      "integrity": "sha512-VeeCgtGi4P+o9hIg+xz4qQpRl6R401LWEXBmxYKOV4zlF82lyhgh2hTZnheFUbANE8l2A41F458iwj2vEYaXJg==",
       "dev": true,
       "requires": {
         "fsevents": "~2.3.2"