chore(deps-dev): bump rollup from 2.77.2 to 2.78.0 (vega#8360)

Bumps [rollup](https://github.com/rollup/rollup) from 2.77.2 to 2.78.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v2.77.2...v2.78.0)

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

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

yarn.lock

@@ -6993,9 +6993,9 @@ rollup-plugin-terser@^7.0.2:
     terser "^5.0.0"
 
 rollup@^2.70.1:
-  version "2.77.2"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.77.2.tgz#6b6075c55f9cc2040a5912e6e062151e42e2c4e3"
-  integrity sha512-m/4YzYgLcpMQbxX3NmAqDvwLATZzxt8bIegO78FZLl+lAgKJBd1DRAOeEiZcKOIOPjxE6ewHWHNgGEalFXuz1g==
+  version "2.78.0"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.78.0.tgz#00995deae70c0f712ea79ad904d5f6b033209d9e"
+  integrity sha512-4+YfbQC9QEVvKTanHhIAFVUFSRsezvQF8vFOJwtGfb9Bb+r014S+qryr9PSmw8x6sMnPkmFBGAvIFVQxvJxjtg==
   optionalDependencies:
     fsevents "~2.3.2"