chore(deps): Update dependency STABLE to v1.81.0

Author: renovate[bot]

.github/workflows/ci.yml

@@ -106,7 +106,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.80"  # STABLE
+        toolchain: "1.81.0"  # STABLE
     - uses: Swatinem/rust-cache@v2
     - name: Check documentation
       env:
@@ -121,7 +121,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.80"  # STABLE
+        toolchain: "1.81.0"  # STABLE
         components: rustfmt
     - uses: Swatinem/rust-cache@v2
     - name: Check formatting
@@ -137,7 +137,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.80"  # STABLE
+        toolchain: "1.81.0"  # STABLE
         components: clippy
     - uses: Swatinem/rust-cache@v2
     - name: Install SARIF tools