fix(ci): install Python 3.11 from deadsnakes PPA

.gitea/workflows/ci-cd.yml

@@ -7,7 +7,7 @@ on:
     branches: [ main, develop, dev ]
 
 env:
-  PYTHON_VERSION: "3"
+  PYTHON_VERSION: "3.11"
 
 jobs:
   lint:
@@ -23,14 +23,16 @@ jobs:
 
       - name: Install Python and uv
         run: |
-          apt-get update && apt-get install -y python3 python3-venv
+          apt-get update && apt-get install -y software-properties-common
+          add-apt-repository -y ppa:deadsnakes/ppa
+          apt-get update && apt-get install -y python3.11 python3.11-venv
           curl -LsSf https://astral.sh/uv/install.sh | sh
           export PATH="$HOME/.local/bin:$PATH"
 
       - name: Create virtual environment and install dependencies
         run: |
           export PATH="$HOME/.local/bin:$PATH"
-          uv venv
+          uv venv --python python3.11
           source .venv/bin/activate
           uv sync --dev
 
@@ -59,14 +61,16 @@ jobs:
 
       - name: Install Python and uv
         run: |
-          apt-get update && apt-get install -y python3 python3-venv
+          apt-get update && apt-get install -y software-properties-common
+          add-apt-repository -y ppa:deadsnakes/ppa
+          apt-get update && apt-get install -y python3.11 python3.11-venv
           curl -LsSf https://astral.sh/uv/install.sh | sh
           export PATH="$HOME/.local/bin:$PATH"
 
       - name: Create virtual environment and install dependencies
         run: |
           export PATH="$HOME/.local/bin:$PATH"
-          uv venv
+          uv venv --python python3.11
           source .venv/bin/activate
           uv sync --dev