ci: Update actions.

Use `actions/checkout@v3` to remove a warning about old versions
of node.

Use `dtolay/rust-toolchain` instead of `actions-rs/toolchain` as
it is maintained (and `actions-rs` actions are not). This also
resolves a number of warnings about deprecated functionality
within the GitHub Actions UI.

Update one usage of `Swatimem/rust-cache` to v2. The other
already was updated.

Use `cargo` directly instead of using `actions-rs/cargo` as that
action is also unmaintained.

.github/workflows/audit.yml

@@ -8,7 +8,7 @@ jobs:
   security_audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3
       - uses: actions-rs/audit-check@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/ci.yaml

@@ -24,61 +24,38 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         name: Setup rust toolchain
         with:
-          profile: minimal
           toolchain: ${{ matrix.rust }}
-          override: true
           components: rustfmt, clippy
 
       - uses: Swatinem/rust-cache@v2
         name: Load dependencies from cache
 
-      - uses: actions-rs/cargo@v1
-        name: Build with stable features
-        with:
-          command: build
-          args: --features stable
+      - name: Build with stable features
+        run: cargo build --features stable
 
-      - uses: actions-rs/cargo@v1
+      - name: Build with unstable features
         if: ${{ matrix.rust == 'nightly' }}
-        name: Build with unstable features
-        with:
-          command: build
-          args: --all-features
+        run: cargo build --all-features
 
-      - uses: actions-rs/cargo@v1
-        name: Build with minimal features
-        with:
-          command: build
-          args: --no-default-features
+      - name: Build with minimal features
+        run: cargo build --no-default-features
 
-      - uses: actions-rs/cargo@v1
-        name: Test with stable features
-        with:
-          command: test
-          args: --features stable
+      - name: Test with stable features
+        run: cargo test --features stable
 
-      - uses: actions-rs/cargo@v1
-        name: Test with minimal features
-        with:
-          command: test
-          args: --no-default-features
+      - name: Test with minimal features
+        run: cargo test --no-default-features
 
-      - uses: actions-rs/cargo@v1
-        name: Check for non-standard formatting
+      - name: Check for non-standard formatting
         if: ${{ matrix.rust == 'stable' }}
-        with:
-          command: fmt
-          args: --all -- --check
+        run: cargo fmt --all -- --check
 
-      - uses: actions-rs/cargo@v1
-        name: Check for clippy hints
+      - name: Check for clippy hints
         if: ${{ matrix.rust == 'stable' }}
-        with:
-          command: clippy
-          args: -- -D warnings
+        run: cargo clippy -- -D warnings
 
       - name: Test run targeting WASI
         run: |
@@ -97,16 +74,14 @@ jobs:
           - stable
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
-          profile: minimal
           toolchain: ${{ matrix.rust }}
-          override: true
           components: rustfmt, clippy
 
-      - uses: Swatinem/rust-cache@v1
+      - uses: Swatinem/rust-cache@v2
 
       - uses: taiki-e/install-action@nextest