Update CI to use uv with Tsinghua mirror for package installation

.gitlab-ci.yml

@@ -4,9 +4,6 @@ stages:
   - build-docker
   - deploy
 
-variables:
-  GIT_DEPTH: 1
-
 cache:
     key: one-key-to-rule-them-all
     paths:
@@ -90,8 +87,10 @@ zy:
   tags:
     - zy
   before_script:
-    - pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
-    - pip install -r requirements.txt
+    - pip install uv
+    - uv venv --python 3.12 $HOME/venv
+    - source $HOME/venv/bin/activate
+    - uv pip install -r requirements.txt --default-index https://pypi.tuna.tsinghua.edu.cn/simple
   script:
     - make fetch
     - date