Automate messaging dev Slack channel when new PRs are opened

[eburdekin]

Overview

Right now our team messages the #expunge-assist-dev Slack channel when we open new PRs on dev. We have a few options to automate this step in our process.

Action Items

• [x] Review options and evaluate whether a new GitHub Action, the GitHub App Slack integration, or another way is better for our purposes
• [ ] Code GitHub Action or update Slack settings
• [ ] Make sure the notifications are only for pull requests opened on the dev branch

Resources/Notes

• GitHub Actions for Slack
• GitHub-Slack integration

[github-actions[bot]]

Hey @eburdekin! Thanks for taking this issue.

To help keep everyone in the loop, please comment your Estimated Time to Completion (ETC) below!

Thanks again!

[github-actions[bot]]

Hey @eburdekin! Thanks again for taking this issue.

Time for an update! Please comment the following update:
**Progress:** What's the status of the project? What have you done and what still needs to be done?
**Estimated Time to Completion (ETC):** When do you estimate to be finished?
**Blockers:** Anything preventing you from finishing?

Thanks again!

[eburdekin]

Hey @sydneywalcoff! We should be able to set this up pretty easily using the GitHub-Slack integration by sending this message in our #expunge-assist-dev channel:

/github subscribe hackforla/expunge-assist pulls:opened branch:dev

just running into some permission issues on the GitHub repo side:

Wondering if you're able to update? if not, I can switch to figuring it out via GitHub Actions