Setup GitHub Actions for spark-stats Cloudflare Worker

[pyropy]

We need to setup Github Actions to automate testing and deployment of cloudflare worker used for gathering request metrics for spark-stats.

Part of #206

[juliangruber]

Set up GitHub Actions for what? Did you mean to open this issue on https://github.com/filecoin-station/cf-metrics? If so, please move it there

[pyropy]

Moving to filecoin-station/spark-stats-request-metrics#4

[pyropy]

Set up GitHub Actions for what? Did you mean to open this issue on https://github.com/filecoin-station/cf-metrics? If so, please move it there

Sorry, I have created this issue automatically from issue #206. I'm going to open issues in relevant repositories in the future.