chore: refresh GitHub repository setup (#23)

* chore: refresh GitHub repository setup

* chore: align CI with Rust 1.88 MSRV

.github/workflows/cross-platform.yml

@@ -6,6 +6,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   cross-platform:
     name: cross-platform default (${{ matrix.os }})
@@ -17,8 +20,8 @@ jobs:
           - ubuntu-latest
           - windows-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
-      - uses: Swatinem/rust-cache@v2
+      - uses: actions/checkout@v7
+      - uses: dtolnay/rust-toolchain@1.88.0
+      - uses: Swatinem/rust-cache@v2.9.1
       - run: cargo check
       - run: cargo test