replace YAML config with JSON one

[sz3lbi]

This PR introduces type-safe JSON configuration generation for sqlc based on Gleam types instead of the YAML configuration based on string concatenation.

JSON Schema: https://www.schemastore.org/sqlc-2.0.json (source: sqlc-dev/sqlc#4102)

[sz3lbi]

Honestly, I'm not sure if differentiating between config versions is necessary in this case. This is especially true since it's an internal implementation, and you, as the package owner, decide which version will be used (exclusively or not).
Please make a decision on this.

[daniellionel01]

Honestly, I'm not sure if differentiating between config versions is necessary in this case. This is especially true since it's an internal implementation, and you, as the package owner, decide which version will be used (exclusively or not). Please make a decision on this.

hi! thanks for this improvement. I've got time to work on this now.
yeah we don't have to differentiate between the config versions, since we always pin the exact version.

[daniellionel01]

@sz3lbi i can finish the PR this week, or would you like to do it?

[sz3lbi]

@sz3lbi i can finish the PR this week, or would you like to do it?

I will do what we agreed upon today, and then you can make adjustments if necessary :)

[sz3lbi]

Please squash the commits for readability.

[daniellionel01]

For documentation sake: I explicitly linked the sqlc.json config file when sqlc generate is called since in existing projects there could be both the yaml and json file in the same directory.