fix(webpack): add node-fetch-native to externals list

[danielroe]

🔗 Linked issue

resolves #10751

❓ Type of change

• 📖 Documentation (updates to the documentation, readme or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This adds node-fetch-native to the externals list when building. It also marks cjs and mjs as allowable native file extensions to allow avoiding bundling these files.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codesandbox]

  Open in CodeSandbox Web Editor | VS Code | VS Code Insiders

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (093e1b1) 65.96% compared to head (a7ca27a) 65.96%.

Additional details and impacted files

@@           Coverage Diff           @@
##              2.x   #19755   +/-   ##
=======================================
  Coverage   65.96%   65.96%           
=======================================
  Files          93       93           
  Lines        4113     4113           
  Branches     1165     1165           
=======================================
  Hits         2713     2713           
  Misses       1133     1133           
  Partials      267      267           

Flag	Coverage Δ
unittests	65.96% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/webpack/src/config/server.js	2.27% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.

[pi0]

LGTM if already tested