Install rustfmt explicitly

Kobzol · Kobzol · commit f911f2a31f21 · 2025-03-27T17:19:08.000+01:00
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -19,6 +19,7 @@ jobs:
           rustc -vV
           rustup toolchain install 1.85.0
           rustup default 1.85.0
+          rustup component add rustfmt
           rustc -vV
 
       - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6
