Bump prepend-file from 1.3.1 to 2.0.0 (#98)

Bumps [prepend-file](https://github.com/hemanth/node-prepend-file) from 1.3.1 to 2.0.0.
- [Release notes](https://github.com/hemanth/node-prepend-file/releases)
- [Commits](hemanth/node-prepend-file@v1.3.1...v2.0.0)

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

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

package.json

@@ -36,7 +36,7 @@
     "@babel/core": "^7.11.5",
     "@babel/preset-env": "^7.11.5",
     "babel-tape-runner": "^3.0.0",
-    "prepend-file": "^1.3.1",
+    "prepend-file": "^2.0.0",
     "shelljs": "^0.8.1",
     "stylelint": "^13.7.0",
     "tape": "^5.0.1"