fix(core): Fix typos in common error messages (no-changelog)

[pemontto]

Summary

Fix typos in common error messages:

Review / Merge checklist

• [X] PR title and summary are descriptive. Remember, the title automatically goes into the changelog. Use (no-changelog) otherwise. (conventions)
• [X] Docs updated or follow-up ticket created.
• [ ] Tests included.

  A bug is not considered fixed, unless a test is added to prevent it from happening again. A feature is not complete without tests.

[ivov]

@pemontto Thanks! If you can please fix the failing tests

[janober]

Got released with [email protected]