Bump rust from 1.92.0 to 1.93.0 (chitoku-k#30)

renovate[bot] · web-flow · commit 259371608ab4 · 2026-01-25T04:34:39.000+09:00
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.92.0"
+channel = "1.93.0"
