fix: add dependency installation to build job

.gitea/workflows/ci.yml

@@ -41,6 +41,12 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: '3.11'
+          cache: 'pip'
+      
+      - name: Install dependencies
+        run: |
+          pip install --upgrade pip
+          pip install .
       
       - name: Build package
         run: |