Update: Python 3.9

.github/workflows/generate_document.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.8"
+          python-version: "3.9"
       - name: Setup Java
         uses: actions/setup-java@v2
         with:

.github/workflows/python_lint.yml

@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.8"
+          python-version: "3.9"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade poetry

.github/workflows/test.yml

@@ -39,10 +39,10 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y shellcheck
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v4
         with:
-          python-version: "3.8"
+          python-version: "3.9"
       - name: Install Pyflakes
         run: pip install 'pyflakes>3,<4'
       - name: actionlint
@@ -67,10 +67,10 @@ jobs:
         uses: ./.github/actions/rust-toolchain-from-file
         with:
           components: clippy,rustfmt
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v4
         with:
-          python-version: "3.8"
+          python-version: "3.9"
       - uses: Swatinem/rust-cache@v2
       - run: cargo clippy -vv --all-features --features onnxruntime/disable-sys-build-script --tests -- -D clippy::all -D warnings --no-deps
       - run: cargo clippy -vv --all-features --features onnxruntime/disable-sys-build-script -- -D clippy::all -D warnings --no-deps
@@ -125,10 +125,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v4
         with:
-          python-version: "3.8"
+          python-version: "3.9"
       - name: Set up Rust
         uses: ./.github/actions/rust-toolchain-from-file
       - uses: Swatinem/rust-cache@v2
@@ -262,10 +262,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v4
         with:
-          python-version: "3.8"
+          python-version: "3.9"
       - name: Set up Rust
         uses: ./.github/actions/rust-toolchain-from-file
       - run: |