fix: add explicit toolchain parameter to rust-toolchain action

Author: Lenvanderhof

.github/workflows/ci.yml

@@ -136,6 +136,7 @@ jobs:
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
         with:
+          toolchain: stable
           components: clippy
 
       - name: Configure sccache
@@ -178,6 +179,7 @@ jobs:
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
         with:
+          toolchain: stable
           components: rustfmt
 
       - name: Check formatting
@@ -205,6 +207,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Configure sccache
         uses: mozilla-actions/sccache-action@676c0e67b665684f17941acf5cc3af83bcf10228 # v0.0.6
@@ -251,6 +255,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Configure sccache
         uses: mozilla-actions/sccache-action@676c0e67b665684f17941acf5cc3af83bcf10228 # v0.0.6
@@ -309,6 +315,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Install cargo-audit
         run: cargo install cargo-audit --locked
@@ -358,6 +366,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Configure sccache
         uses: mozilla-actions/sccache-action@676c0e67b665684f17941acf5cc3af83bcf10228 # v0.0.6
@@ -437,6 +447,8 @@ jobs:
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@f7ccc83f9ed1e5b9c81d8a67d7ad1a747e22a561 # stable
+        with:
+          toolchain: stable
 
       - name: Install tarpaulin
         run: cargo install cargo-tarpaulin --locked