chore(deps-dev): bump graceful-fs from 4.2.6 to 4.2.8 (#761)

Bumps [graceful-fs](https://github.com/isaacs/node-graceful-fs) from 4.2.6 to 4.2.8.
- [Release notes](https://github.com/isaacs/node-graceful-fs/releases)
- [Commits](isaacs/node-graceful-fs@v4.2.6...v4.2.8)

---
updated-dependencies:
- dependency-name: graceful-fs
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

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

yarn.lock

@@ -6927,9 +6927,9 @@ got@^9.6.0:
     url-parse-lax "^3.0.0"
 
 graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.4, graceful-fs@^4.1.6, graceful-fs@^4.2.0, graceful-fs@^4.2.2, graceful-fs@^4.2.4, graceful-fs@^4.2.6:
-  version "4.2.6"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.6.tgz#ff040b2b0853b23c3d31027523706f1885d76bee"
-  integrity sha512-nTnJ528pbqxYanhpDYsi4Rd8MAeaBA67+RZ10CM1m3bTAVFEDcd5AuA4a6W5YkGZ1iNXHzZz8T6TBKLeBuNriQ==
+  version "4.2.8"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.8.tgz#e412b8d33f5e006593cbd3cee6df9f2cebbe802a"
+  integrity sha512-qkIilPUYcNhJpd33n0GBXTB1MMPp14TxEsEs0pTrsSVucApsYzW5V+Q8Qxhik6KU3evy+qkAAowTByymK0avdg==
 
 graphql-extensions@^0.13.0:
   version "0.13.0"