fix(build): Improve regex in copy traced files to skip symbolic links

[sommeeeer]

When you use pnpm there will be a symbolic link pointing to the store. Our current regex didn't exclude this as it was just looking for all the files living under a folder. This could cause file already exists errors when trying to install sharp or any of the other excluded packages on the default server function.

❯ cd node_modules
❯ file sharp
sharp: symbolic link to .pnpm/[email protected]/node_modules/sharp

Reference: Discord thread

[changeset-bot]

🦋 Changeset detected

Latest commit: b6a2ac3

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@opennextjs/aws	Patch
app-pages-router	Patch
app-router	Patch

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[pkg-pr-new]

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pnpm add https://pkg.pr.new/@opennextjs/aws@979

commit: b6a2ac3