feat: upgrade libnpmexec from 3.0.3 to 7.0.8

Snyk has created this PR to upgrade libnpmexec from 3.0.3 to 7.0.8.

See this package in npm:
https://www.npmjs.com/package/libnpmexec

See this project in Snyk:
https://app.snyk.io/org/jorddojames/project/5cb1c70b-51ef-4b11-98b9-49ed178f597f?utm_source=github&utm_medium=referral&page=upgrade-pr

deps/npm/package.json

@@ -81,7 +81,7 @@
     "json-parse-even-better-errors": "^2.3.1",
     "libnpmaccess": "^5.0.1",
     "libnpmdiff": "^3.0.0",
-    "libnpmexec": "^3.0.3",
+    "libnpmexec": "^7.0.8",
     "libnpmfund": "^2.0.2",
     "libnpmhook": "^7.0.1",
     "libnpmorg": "^3.0.1",