Does not work with directories if the target path already exists

[JordanPFVR]

      - name: Local cache for current JS Bundle based on SHA
        id: js-bundle-cache
        uses: MasterworksIO/action-local-cache@2
        with:
          path: './release/app'
          key: ${{ steps.read_yaml.outputs.sha }}

For the following configuration the post step will successfully cache the ./release/app directory under the correct path intentional path (prefix'd with the org name and cache key).

On subsequent runs, if the path defined by targetPath already exists, @actions/io mv will append the target path with the basename of the given path...

We can see this behaviour here: https://github.com/actions/toolkit/blob/main/packages/io/src/io.ts#L91

The result is the cache is incorrectly restored into ./release/app/app/.

The fix is to use targetDir rather than targetPath when working with directories.
https://github.com/MasterworksIO/action-local-cache/blob/main/src/main.ts#L15

[mihoci10]

I have opened a new pull request where I have fixed this issue.