No more deprecated API usages

[juliushaertl]

📝 Summary

• chore: Move away from deprecated backend APIs
• ci(paslm): Consider deprecated methods as errors

Since now all deprecated API usages are fixed I added the DeprecatedMethod as an error case to the psalm config as long as we cannot increase the psalm level (which might be a bit more work, but should be done)

🏁 Checklist

• Code is properly formatted (npm run lint / npm run stylelint / composer run cs:check)
• Sign-off message is added to all commits
• Tests (unit, integration and/or end-to-end) passing and the changes are covered with tests
• Documentation (README or documentation) has been updated or is not required

[mejo-]

Code changes look sensible 👌

[cypress]

1 flaky tests on run #10042 ↗︎

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142

1

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1

Details:

No more deprecated API usages
Project: Text	Commit: 068fd19762
Status: Passed	Duration: 03:30 💡
Started: Jun 7, 2023 8:32 PM	Ended: Jun 7, 2023 8:36 PM

  cypress/e2e/nodes/Mentions.spec.js • 1 flaky test

View Output Video

Test		Artifacts
Test mentioning users > Type @ and see the user list		Output Screenshots

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