fix!: schemars 0.8 -> schemars 1.0

[aatifsyed]

schemars has stabilised now :)

Merge requirement checklist

• CONTRIBUTING guidelines followed
• Unit tests added/updated (if applicable)
• Appropriate CHANGELOG.md files updated for non-trivial, user-facing changes
• Changes in public API reviewed (if applicable)

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: cijothomas / name: Cijo Thomas (4a5f423)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.5%. Comparing base (84ba33f) to head (4a5f423).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #3294   +/-   ##
=====================================
  Coverage   80.5%   80.5%           
=====================================
  Files        129     129           
  Lines      23294   23294           
=====================================
  Hits       18756   18756           
  Misses      4538    4538           

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