Update actions/checkout digest to 6b42224

Author: renovate[bot]

.github/workflows/rust.yml

@@ -17,7 +17,7 @@ jobs:
   check-style:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+      - uses: actions/checkout@6b42224f41ee5dfe5395e27c8b2746f1f9955030
       - name: Report cargo version
         run: cargo --version
       - name: Report rustfmt version
@@ -28,7 +28,7 @@ jobs:
   clippy-lint:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+      - uses: actions/checkout@6b42224f41ee5dfe5395e27c8b2746f1f9955030
       - name: Report cargo version
         run: cargo --version
       - name: Report Clippy version
@@ -48,7 +48,7 @@ jobs:
           - features: all
             feature_flags: --all-features
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+      - uses: actions/checkout@6b42224f41ee5dfe5395e27c8b2746f1f9955030
       - name: Report cargo version
         run: cargo --version
       - name: Report rustc version