run cargo-outdated on MSRV

Author: xtqqczze

.github/workflows/rust.yml

@@ -1,5 +1,8 @@
 name: Rust - Continuous Integration
 
+env:
+  RUST_MIN_SRV: "1.65.0"
+
 on:
   push:
     branches: [ master ]
@@ -107,7 +110,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ env.RUST_MIN_SRV }}
       - name: Set up Rust cache
         uses: Swatinem/rust-cache@v2
       - name: Install `cargo-outdated`