chore: Add rust-toolchain file (#16)

flemosr · web-flow · commit beb9811c8630 · 2025-04-15T11:42:57.000-03:00
Explicitly pin toolchain to version `1.86.0` (current stable).
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.86.0"
+components = ["rustfmt", "clippy"]
