Fix deprecation warnings in Actions workflow

Author: w1th0utnam3

.github/workflows/build.yml

@@ -15,11 +15,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@stable
       - name: Check format
         run: cargo fmt -- --check
 
@@ -28,8 +25,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/cache@v2
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/bin/
@@ -38,10 +35,7 @@ jobs:
             ~/.cargo/git/db/
             target/
           key: ${{ runner.os }}-cargo-check-${{ hashFiles('**/Cargo.toml') }}
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
+      - uses: dtolnay/rust-toolchain@stable
       - name: Check
         run: cargo check --verbose
       - name: Check tests
@@ -54,8 +48,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/cache@v2
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/bin/
@@ -64,10 +58,7 @@ jobs:
             ~/.cargo/git/db/
             target/
           key: ${{ runner.os }}-cargo-check-${{ hashFiles('**/Cargo.toml') }}
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
+      - uses: dtolnay/rust-toolchain@stable
       - name: Build and check doc
         run: RUSTDOCFLAGS='-D warnings --html-in-header assets/doc-header.html' cargo doc --all-features --no-deps
 
@@ -76,8 +67,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/cache@v2
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/bin/
@@ -86,10 +77,7 @@ jobs:
             ~/.cargo/git/db/
             target/
           key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.toml') }}
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
+      - uses: dtolnay/rust-toolchain@stable
       - name: Build all tests (cargo build --tests --workspace --all-targets)
         run: cargo build --tests --workspace --all-targets
       - name: Build tests, release (cargo build --tests --workspace --all-targets --release)
@@ -104,8 +92,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/cache@v2
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/bin/
@@ -114,10 +102,7 @@ jobs:
             ~/.cargo/git/db/
             target/
           key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.toml') }}
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
+      - uses: dtolnay/rust-toolchain@stable
       - name: Build all tests (cargo build --tests --workspace --all-targets)
         run: cargo build --tests --workspace --all-targets
       - name: Build tests, release (cargo build --tests --workspace --all-targets --release)