Wooster 4d1432299f ci: use zig build check-fmt instead of zig fmt --check
We already have a zig build step for this: test-fmt.

* Rename the test-fmt step to check-fmt.
  test-fmt sounds like it runs tests for `zig fmt` itself (lib/std/zig/render.zig).
* Use it instead of `zig fmt --check` in the CI scripts.
* Also use it in CI scripts that didn't have this check before.
2023-09-09 15:49:18 +03:00
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