fix: config schema contains invalid types

[renan-r-santos]

Description

The current .config-schema.json contains invalid types and fails when used in VSCode with the YAML extension, for example:

# yaml-language-server: $schema=https://raw.githubusercontent.com/openfga/openfga/refs/tags/v1.8.4/.config-schema.json

datastore:
  engine: postgres

The three changes in this PR are:

1. Change "type": "duration" to "type": "string" and "format": "duration"
2. Change "type": "bool" to "type": "boolean"
3. Change "type": "float" to "type": "number"

References

https://json-schema.org/understanding-json-schema/reference/type

Review Checklist

• I have clicked on "allow edits by maintainers".
• I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
• The correct base branch is being used, if not main
• I have added tests to validate that the change in functionality is working as expected

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: renan-r-santos / name: Renan Santos (6165408, 19a1cc7, ac6c6bc)
• ✅ login: miparnisari / name: Maria Ines Parnisari (018a4a1)

[miparnisari]

Thanks for the contribution! LGTM.

• Please add an entry in the Changelog, under the Unreleased section.
• Could we introduce a new step in github actions that runs this validation? For example, with https://github.com/OrRosenblatt/validate-json-action. Though i'm not sure what the schema input would be (follow up in JSON schema validation spf13/viper#1977). Or maybe a plain Go unit test? 🤔 Otherwise, nothing will prevent an incorrect schema from being written.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.65%. Comparing base (6d2f070) to head (018a4a1).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2217      +/-   ##
==========================================
+ Coverage   89.63%   89.65%   +0.02%     
==========================================
  Files         126      126              
  Lines       16785    16785              
==========================================
+ Hits        15044    15047       +3     
+ Misses       1333     1331       -2     
+ Partials      408      407       -1     

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