Save Wrangler Command Output to a Variable

Please disregard the branch name, I changed what this PR does per @1000hz's suggestions

This pull request enables a more advanced usage of this Action in conjunction with other workflow steps. These changes allow users to gain the ability to parse the wrangler command's output in subsequent workflow steps should they need to.

The @actions/exec package is utilized to save the stdout and stderr streams to variables and then those variables are written to two new Actions outputs when this job completes. These two new outputs are as follows:

• command-output: contains the string results of stdout
• command-stderr: contains the string results of stderr

But wait, there is more! ⭐

Since we are saving the stdout to a variable, it can now be parsed by this Action just a little bit more before exiting. I added in a bonus feature to this PR to detect if the command being run is a deployment for a Cloudflare Pages site or Worker. If it is a deployment, then the deployment-url output gets populated.

• deployment-url: contains the string results of the URL that was deploy (ex: https://<your_pages_site>.pages.dev)

Why?

I personally have several open source projects which I help maintain. We use this Action to deploy our Cloudflare Pages sites. Recently, our workflows for dev environments started breaking. This was a direct result of #210

Here is a resulting Action's log of the failure

This is because we are trying to save the stdout of this Action by piping it to a file. This isn't really the best solution but it worked... at least for a while before it broke. This PR will prevent us from having to use choppy command line hacks in the future.

Being able to capture the output of this command to get the unique dev environment URL for pages deployments is required by our workflows to use it in subsequent workflow steps. This pull request also solves that problem via the new deployment-url output that gets saved as well.

Example 📸

live example workflow -> https://github.com/the-hideout/tarkov-dev/actions/runs/7064233377/job/19231836343

resolves: #211

Thanks! ⭐