chore(dev-deps): bump @types/shelljs from 0.8.14 to 0.8.15

Bumps [@types/shelljs](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/shelljs) from 0.8.14 to 0.8.15.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/shelljs)

---
updated-dependencies:
- dependency-name: "@types/shelljs"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -48,7 +48,7 @@
     "@types/mime": "2.0.3",
     "@types/minimatch": "^5.1.2",
     "@types/proxy-from-env": "^1.0.3",
-    "@types/shelljs": "^0.8.13",
+    "@types/shelljs": "^0.8.15",
     "deep-equal-in-any-order": "^1.1.19",
     "deepmerge": "^4.3.1",
     "eslint-plugin-sf-plugin": "^1.16.13",

yarn.lock

@@ -857,10 +857,10 @@
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-7.5.3.tgz#9a726e116beb26c24f1ccd6850201e1246122e04"
   integrity sha512-OxepLK9EuNEIPxWNME+C6WwbRAOOI2o2BaQEGzz5Lu2e4Z5eDnEo+/aVEDMIXywoJitJ7xWd641wrGLZdtwRyw==
 
-"@types/shelljs@^0.8.13", "@types/shelljs@^0.8.14":
-  version "0.8.14"
-  resolved "https://registry.yarnpkg.com/@types/shelljs/-/shelljs-0.8.14.tgz#87b8817b2397ffe97b86a4d844036ee0d2a1f0ca"
-  integrity sha512-eqKaGPi60riuxI9pUVeCT02EGo94Y6HT119h7w5bXSELsis6+JqzdEy6H/w2xXl881wcN3VDnb/D0WlgSety5w==
+"@types/shelljs@^0.8.14", "@types/shelljs@^0.8.15":
+  version "0.8.15"
+  resolved "https://registry.yarnpkg.com/@types/shelljs/-/shelljs-0.8.15.tgz#22c6ab9dfe05cec57d8e6cb1a95ea173aee9fcac"
+  integrity sha512-vzmnCHl6hViPu9GNLQJ+DZFd6BQI2DBTUeOvYHqkWQLMfKAAQYMb/xAmZkTogZI/vqXHCWkqDRymDI5p0QTi5Q==
   dependencies:
     "@types/glob" "~7.2.0"
     "@types/node" "*"