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.

1 files changed, 7 insertions, 2 deletions

diff --git a/build.zig b/build.zig
index 5211a9a70a..eff017ce22 100644
--- a/build.zig
+++ b/build.zig
@@ -422,13 +422,18 @@ pub fn build(b: *std.Build) !void {
     const optimization_modes = chosen_opt_modes_buf[0..chosen_mode_index];
 
     const fmt_include_paths = &.{ "doc", "lib", "src", "test", "tools", "build.zig" };
-    const fmt_exclude_paths = &.{"test/cases"};
+    const fmt_exclude_paths = &.{
+        "test/cases",
+        // This is for the CI scripts.
+        "build-debug",
+        "build-release",
+    };
     const do_fmt = b.addFmt(.{
         .paths = fmt_include_paths,
         .exclude_paths = fmt_exclude_paths,
     });
 
-    b.step("test-fmt", "Check source files having conforming formatting").dependOn(&b.addFmt(.{
+    b.step("check-fmt", "Check source files having conforming formatting").dependOn(&b.addFmt(.{
         .paths = fmt_include_paths,
         .exclude_paths = fmt_exclude_paths,
         .check = true,