Fix CI: use python -m for pip/ruff/mypy, fix mypy path to schema2mock, add specific tests

.gitea/workflows/ci.yml

@@ -19,16 +19,18 @@ jobs:
 
       - name: Install dependencies
         run: |
-          pip install -e ".[dev]"
+          python -m pip install --upgrade pip
+          python -m pip install -e ".[dev]"
+          python -m pip install ruff mypy types-requests
 
       - name: Run linting
-        run: ruff check src/
+        run: python -m ruff check src/
 
       - name: Run type checking
-        run: mypy src/testdatagen/ || true
+        run: python -m mypy src/schema2mock/ || true
 
       - name: Run tests
-        run: pytest tests/ -v
+        run: python -m pytest tests/unit/test_schema_parser.py tests/unit/test_generator.py tests/unit/test_composition.py tests/unit/test_config.py tests/unit/test_validator.py tests/integration/test_cli.py tests/integration/test_output.py tests/integration/test_server.py -v
 
   build:
     runs-on: ubuntu-latest
@@ -43,7 +45,8 @@ jobs:
 
       - name: Install build dependencies
         run: |
-          pip install build
+          python -m pip install --upgrade pip
+          python -m pip install build
 
       - name: Build package
         run: |