Update github actions in CI (RustPython#6169)

* Update `setup-python` to v6

* Update `checkout` to v5

Author: ShaharNaveh

.github/workflows/ci.yaml

@@ -122,7 +122,7 @@ jobs:
           - windows-2025 # TODO: Switch to `windows-latest` on 2025/09/30
       fail-fast: false
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy
@@ -181,7 +181,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
         with:
           target: i686-unknown-linux-gnu
@@ -251,10 +251,10 @@ jobs:
           - windows-2025 # TODO: Switch to `windows-latest` on 2025/09/30
       fail-fast: false
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: Set up the Windows environment
@@ -273,7 +273,7 @@ jobs:
       - name: build rustpython
         run: cargo build --release --verbose --features=threading ${{ env.CARGO_ARGS }},jit
         if: runner.os != 'macOS'
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: run snippets
@@ -316,15 +316,15 @@ jobs:
     name: Check Rust code with rustfmt and clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
         with:
             components: rustfmt, clippy
       - name: run rustfmt
         run: cargo fmt --check
       - name: run clippy on wasm
         run: cargo clippy --manifest-path=wasm/lib/Cargo.toml -- -Dwarnings
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: install ruff
@@ -357,7 +357,7 @@ jobs:
     env:
       NIGHTLY_CHANNEL: nightly
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: dtolnay/rust-toolchain@master
         with:
@@ -379,7 +379,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
 
       - uses: Swatinem/rust-cache@v2
@@ -390,7 +390,7 @@ jobs:
           wget https://github.com/mozilla/geckodriver/releases/download/v0.36.0/geckodriver-v0.36.0-linux64.tar.gz
           mkdir geckodriver
           tar -xzf geckodriver-v0.36.0-linux64.tar.gz -C geckodriver
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - run: python -m pip install -r requirements.txt
@@ -440,7 +440,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
         with:
           target: wasm32-wasip1