chore(deps): update slackapi/slack-github-action action to v2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
slackapi/slack-github-action	action	major	v1 -> v2

---

Release Notes

slackapi/slack-github-action (slackapi/slack-github-action)

v2

Compare Source

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[bjerk-bot]

🍹 preview on bjerk-bot/bjerk/prod

Pulumi report

Previewing update (bjerk/prod)

View Live: https://app.pulumi.com/bjerk/bjerk-bot/prod/previews/bdaf136e-2460-4b59-b2b5-22f611640c37

@ Previewing update.......
Downloading plugin github-5.26.0: starting
Downloading plugin github-5.26.0: done
Installing plugin github-5.26.0: starting
Installing plugin github-5.26.0: done
@ Previewing update....

@ Previewing update......
pulumi:pulumi:Stack bjerk-bot-prod running 
@ Previewing update.....
pulumi:pulumi:Stack bjerk-bot-prod  
Resources:
8 unchanged