ci: replace unmaintained actions-rs/toolchain@v1

Author: phip1611

.github/workflows/_build-rust.yml

@@ -62,14 +62,15 @@ jobs:
     steps:
       - name: Check out
         uses: actions/checkout@v4
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ inputs.rust-version }}
-          override: true
-          components: clippy, rustfmt
-          target: ${{ inputs.rust-target }}
+      - name: Setup Rust toolchain
+        run: |
+          rustup toolchain install ${{ inputs.rust-version }} \
+            --profile minimal \
+            --component clippy rustfmt \
+            --target ${{ inputs.rust-target }} \
+            --no-self-update
+            --force
+          rustup override set ${{ inputs.rust-version }}
       - name: Set up cargo cache
         uses: actions/cache@v3
         continue-on-error: false