fix: add explicit toolchain parameter to rust-toolchain action

Author: Lenvanderhof

.github/workflows/security.yml

@@ -29,6 +29,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Install cargo-audit
         run: cargo install cargo-audit --locked
@@ -83,6 +85,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Install cargo-license
         run: cargo install cargo-license
@@ -140,6 +144,7 @@ jobs:
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
         with:
+          toolchain: stable
           components: clippy
 
       - name: Cache cargo
@@ -194,6 +199,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Install cargo-sbom
         run: cargo install cargo-sbom