Bump rollup from 2.26.3 to 2.26.4 (#54)

Bumps [rollup](https://github.com/rollup/rollup) from 2.26.3 to 2.26.4.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v2.26.3...v2.26.4)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

yarn.lock

@@ -4539,9 +4539,9 @@ rollup-pluginutils@^2.8.1:
     estree-walker "^0.6.1"
 
 rollup@^2.23.0:
-  version "2.26.3"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.26.3.tgz#502c755872a4590937cfa4e8f7eb99d3bc3c4025"
-  integrity sha512-Mlt39/kL2rA9egcbQbaZV1SNVplGqYYhDDMcGgHPPE0tvM3R4GrB+IEdYy2QtTrdzMQx57ZcqDFf/KWWm8F+uw==
+  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"