Update checkout action

Author: schungx

.github/workflows/benchmark.yml

@@ -10,7 +10,7 @@ jobs:
     name: Run Rust benchmark
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: rustup toolchain update nightly && rustup default nightly
       - name: Run benchmark
         run: cargo +nightly bench --features decimal,metadata,serde,debugging | tee output.txt

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
   msrv:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/cache@v4
         with:
           path: |
@@ -81,7 +81,7 @@ jobs:
       fail-fast: false
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Setup Toolchain
       uses: actions-rs/toolchain@v1
       with:
@@ -106,7 +106,7 @@ jobs:
           #- {os: macos-latest, flags: "--profile macos", experimental: false}
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Setup Toolchain
       uses: actions-rs/toolchain@v1
       with:
@@ -133,7 +133,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup Generic Wasm Toolchain
         uses: actions-rs/toolchain@v1
         with:
@@ -158,7 +158,7 @@ jobs:
     continue-on-error: true
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Setup Toolchain
       uses: actions-rs/toolchain@v1
       with:
@@ -187,7 +187,7 @@ jobs:
           - {toolchain: stable, os: windows-latest, experimental: false, flags: "--features metadata"}
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Setup Toolchain
       uses: actions-rs/toolchain@v1
       with:

.github/workflows/ci.yaml

@@ -13,7 +13,7 @@ jobs:
   feature_powerset:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: stable