Web package builder overrides target of tsconfig.lib.json

[scdc]

Current Behavior

When building umd module with web package builder, the typescript target config of the library is overriden with 'es5'

Expected Behavior

Nx Package bundler should use target from the tsconfig.lib.json of the library.
It's a regression from Nx 8 where the correct target was used.

Steps to Reproduce

The problem is located in

https://github.com/nrwl/nx/blob/master/packages/web/src/builders/package/package.impl.ts

The target configuration is overridden when configuring the rollup typescript plugin

typescript(
{
        check: true,
        tsconfig: options.tsConfig,
        tsconfigOverride: {
          compilerOptions: {
            rootDir: options.entryRoot,
            allowJs: false,
            declaration: true,
            paths: compilerOptionPaths,
            target: config.format === 'esm' ? 'esnext' : 'es5', // all umd module use es5 target even if tsconfig from the library specifies another target
          },
        },
      }
)

[github-actions]

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