Upgrade: Bump shellcheck from 0.4.2 to 0.4.4 (#149)

Bumps [shellcheck](https://github.com/gunar/shellcheck) from 0.4.2 to 0.4.4.
- [Release notes](https://github.com/gunar/shellcheck/releases)
- [Commits](gunar/shellcheck@v0.4.2...v0.4.4)

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

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

package.json

@@ -61,7 +61,7 @@
     "npm-watch": "^0.6.0",
     "nyc": "^15.1.0",
     "rewire": "^5.0.0",
-    "shellcheck": "^0.4.2",
+    "shellcheck": "^0.4.4",
     "sinon": "^9.0.2",
     "yaml-lint": "^1.2.4"
   }