Fix CI workflow - use native Gitea syntax

.gitea/workflows/ci.yml

@@ -2,28 +2,29 @@ name: CI
 
 on:
   push:
-    branches:
-      - main
+    branches: [ main ]
   pull_request:
-    branches:
-      - main
+    branches: [ main ]
 
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
+      - name: Checkout
+        run: |
+          mkdir -p ${{ github.workspace }}
+          cd ${{ github.workspace }}
+          git clone --depth 1 https://github.com/actions/checkout.git _actions/checkout
+          cp -r _actions/checkout/* .
+          rm -rf _actions
       
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.10'
+      - name: Setup Python
+        run: |
+          python3 -m pip install --upgrade pip
       
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install pytest pytest-cov
+          pip install pytest
           pip install -r requirements.txt
       
       - name: Run tests
@@ -33,13 +34,13 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.10'
+      - name: Checkout
+        run: |
+          mkdir -p ${{ github.workspace }}
+          cd ${{ github.workspace }}
+          git clone --depth 1 https://github.com/actions/checkout.git _actions/checkout
+          cp -r _actions/checkout/* .
+          rm -rf _actions
       
       - name: Run linter
         run: |
@@ -50,15 +51,15 @@ jobs:
     runs-on: ubuntu-latest
     needs: test
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
+      - name: Checkout
+        run: |
+          mkdir -p ${{ github.workspace }}
+          cd ${{ github.workspace }}
+          git clone --depth 1 https://github.com/actions/checkout.git _actions/checkout
+          cp -r _actions/checkout/* .
+          rm -rf _actions
       
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.10'
-
-      - name: Install and build
+      - name: Verify build
         run: |
           pip install -r requirements.txt
           python -c "from man_card import cli, man_parser, card_generator, templates, config; print('All modules import successfully')"