fix yaml indentation

Author: msrd0

.github/workflows/rust.yml

@@ -63,12 +63,12 @@ jobs:
             toolchain: nightly
             nightly: true
         os: [ubuntu-latest, windows-latest, macOS-latest]
-      include:
-        - rust:
-            name: MSRV
-            toolchain: stable
-            nightly: false
-          os: ubuntu-latest
+        include:
+          - rust:
+              name: MSRV
+              toolchain: stable
+              nightly: false
+            os: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master