feat: add version-id to action output of "version upload" command

[iiroj]

This Pull Request adds a new GitHub Action output version-id referring to the new version uploaded with wrangler versions upload.

The use-case is to be able to run the Wrangler action to upload a new Worker version, and then run it again to deploy that version, for example:

      - name: Upload new Worker version
        id: upload
        uses: cloudflare/wrangler-action@v3
        with:
          command: versions upload --tag "${{ github.ref_name }}"
      - name: Deploy new Worker version to 100%
        uses: cloudflare/wrangler-action@v3
        with:
          command: versions deploy "${{ steps.upload.outputs.version-id }}@100%"

[iiroj]

This looks like a UUID when running wrangler locally with WRANGLER_OUTPUT_FILE_DIRECTORY and looking at the output file, but I opted to simply parse it as a string because I assume it's not that important.

[Maximo-Guk]

I would go ahead and parse it as a UUID since it should only ever be a UUID according to https://github.com/cloudflare/workers-sdk/blob/main/packages/wrangler/src/output.ts#L141

if the format changes from UUID, that would definitely be a breaking API change!