fix: replace GitHub actions with direct commands in test workflow

Replace actions/checkout@v4 and actions/setup-* with direct git clone
and version checks to avoid GitHub connectivity issues.

.gitea/workflows/test.yml

@@ -15,14 +15,15 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        run: |
+          git clone --depth 1 http://gitea:3000/jimmy/nas-tools.git .
+          git fetch --depth 1 origin ${{ github.sha }}
+          git checkout ${{ github.sha }}
 
       - name: Setup Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.12'
-          cache: 'pip'
-          cache-dependency-path: 'dashboard/backend/requirements*.txt'
+        run: |
+          python3 --version
+          pip3 --version
 
       - name: Install dependencies
         run: |
@@ -51,14 +52,15 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        run: |
+          git clone --depth 1 http://gitea:3000/jimmy/nas-tools.git .
+          git fetch --depth 1 origin ${{ github.sha }}
+          git checkout ${{ github.sha }}
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: '20'
-          cache: 'npm'
-          cache-dependency-path: 'dashboard/frontend/package-lock.json'
+        run: |
+          node --version
+          npm --version
 
       - name: Install dependencies
         env: