Minimal repro for webpack/webpack#20860 (comment).

• package-5.106 uses webpack 5.106.0 + license-webpack-plugin@^2.3.14 and is expected to build successfully.

• package-5.107 uses webpack 5.107.0 + license-webpack-plugin@^2.3.14 and is expected to fail with:

  HookWebpackError: Cannot read properties of undefined (reading 'trim')

CI builds both packages; the package-5.107 build reproduces the failure.