API token authentication

[jasperweyne]

This PR adds API token authentication. It supports both local and OIDC accounts and it's based on #319. Local accounts are supported through database stored 64-bit access tokens that expire after 5 minutes, thereby functioning as access tokens.

ToDo: coverage, command to generate long-lived tokens for development.

[gitguardian[bot]]

⚠️ GitGuardian has uncovered 1 secret following the scan of your pull request.

Please consider investigating the findings and remediating the incidents. Failure to do so may lead to compromising the associated services or software components.

🔎 Detected hardcoded secret in your pull request

| GitGuardian id | Secret | Commit | Filename | | | -------------- | ------------------------- | ---------------- | --------------- | -------------------- | | [336171](https://dashboard.gitguardian.com/incidents/336171?occurrence=81990594) | Generic High Entropy Secret | 51af855524081b6d6eae0b9a28e93f2613d100ca | .github/workflows/main.yml | [View secret](https://github.com/jasperweyne/helpless-kiwi/commit/51af855524081b6d6eae0b9a28e93f2613d100ca#diff-7829468e86c1cc5d5133195b5cb48e1ff6c75e3e9203777f6b2e379d9e4882b3L91) |

🛠 Guidelines to remediate hardcoded secrets

1. Understand the implications of revoking this secret by investigating where it is used in your code. 2. Replace and store your secret safely. [Learn here](https://blog.gitguardian.com/secrets-api-management?utm_source=product&utm_medium=GitHub_checks&utm_campaign=check_run_comment) the best practices. 3. Revoke and [rotate this secret](https://docs.gitguardian.com/secrets-detection/detectors/generics/generic_high_entropy_secret#revoke-the-secret?utm_source=product&utm_medium=GitHub_checks&utm_campaign=check_run_comment). 4. If possible, [rewrite git history](https://blog.gitguardian.com/rewriting-git-history-cheatsheet?utm_source=product&utm_medium=GitHub_checks&utm_campaign=check_run_comment). Rewriting git history is not a trivial act. You might completely break other contributing developers' workflow and you risk accidentally deleting legitimate data. To avoid such incidents in the future consider - following these [best practices](https://blog.gitguardian.com/secrets-api-management/?utm_source=product&utm_medium=GitHub_checks&utm_campaign=check_run_comment) for managing and storing secrets including API keys and other credentials - install [secret detection on pre-commit](https://https://docs.gitguardian.com/ggshield-docs/integrations/git-hooks/pre-commit?utm_source=product&utm_medium=GitHub_checks&utm_campaign=check_run_comment) to catch secret before it leaves your machine and ease remediation.

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[A-Daneel]

I know it's been a week, it's been a very busy one for me. I hope to have some time today, otherwise I'll make some tomorrow.

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
10 Code Smells

80.3% Coverage
0.0% Duplication

[jasperweyne]

I've resolved the described issues, apart from the NullScalar. I'd like to keep those, to mirror the expected arguments from the GraphQL bundle. Let me know what you think, or merge the PR!