chore(e2e): run e2e tests on PRs on ephemeral datasets

[binoy14]

Description

First Review #5044

This PR build on the above PR and creates ephemeral datasets per PR for e2e tests to run in. The dataset is than nuked once the PR is merged. Other changes include the following

• refactor: create a unified PR cleanup action
• refactor: moved envVars script to utils and make it more reusable

Notes for release

• N/A

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
performance-studio	✅ Ready (Inspect)	Visit Preview		Oct 31, 2023 2:17pm
test-studio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 31, 2023 2:17pm

1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
studio-workshop	⬜️ Ignored (Inspect)	Visit Preview		Oct 31, 2023 2:17pm

[github-actions]

No changes to documentation

[github-actions]

Component Testing Report Updated Oct 31, 2023 2:20 PM (UTC)

File	Status	Duration	Passed	Skipped	Failed
formBuilder/ArrayInput.spec.tsx	✅ Passed (Inspect)	8s	3	0	0
formBuilder/inputs/PortableText/Annotations.spec.tsx	✅ Passed (Inspect)	10s	3	0	0
formBuilder/inputs/PortableText/Decorators.spec.tsx	✅ Passed (Inspect)	9s	6	0	0
formBuilder/inputs/PortableText/FocusTracking.spec.tsx	✅ Passed (Inspect)	24s	15	0	0
formBuilder/inputs/PortableText/Input.spec.tsx	✅ Passed (Inspect)	12s	9	0	0
formBuilder/inputs/PortableText/ObjectBlock.spec.tsx	✅ Passed (Inspect)	48s	18	0	0
formBuilder/inputs/PortableText/Styles.spec.tsx	✅ Passed (Inspect)	9s	6	0	0
formBuilder/inputs/PortableText/Toolbar.spec.tsx	✅ Passed (Inspect)	5s	3	0	0

[bjoerge]

Nice, looks great!