Replaced `cURL` slack workflows with `slackapi` #6886

Job	Run time
Lint files	1m 45s
Get image tag	1s
Get changes	15s
Determine images to build and publish	12s
Add stack label	0s
Run Nuxt checks	0s
Run checks for packages/*	0s
Build Docker images	0s
Check Nuxt build	0s
Run Playwright tests	0s
Build full-stack docs	0s
Run Nuxt checks (unit_test)	1s
Run checks for packages/* (build)	1s
Run tests for the catalog	0s
Run checks for packages/* (unit_test)	1s
Run catalog checks	0s
Run tests for the API	0s
Run tests for ingestion-server	0s
Run Playwright tests (playwright_vr)	3s
Run Django checks	0s
Post Playwright test debugging instructions	5s
Run Playwright tests (playwright_e2e)	1s
Run Playwright tests (storybook)	1s
Run Django checks (check_django)	3s
Run Django checks (validate_openapi)	1s
Publish Docker images	0s
Run Django checks (check_migrations)	1s
Run Django checks (test_doc)	2s
Emit full-stack docs	0s
Deploy staging API	0s
Deploy staging frontend	0s
Send Slack report	0s
	2m 33s

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