Update uv pip installation commands to use "--system".

Author: htahir1

.github/workflows/production_run_complete_llm.yml

@@ -39,8 +39,8 @@ jobs:
         working-directory: ./llm-complete-guide
         run: |
           pip3 install uv
-          uv pip install -r requirements.txt
-          uv pip install -r requirements-argilla.txt
+          uv pip install -r requirements.txt --system
+          uv pip install -r requirements-argilla.txt --system
           zenml integration install gcp -y --uv
 
       - name: Connect to ZenML server

.github/workflows/staging_run_complete_llm.yml

@@ -35,8 +35,8 @@ jobs:
         working-directory: ./llm-complete-guide
         run: |
           pip3 install uv
-          uv pip install -r requirements.txt
-          uv pip install -r requirements-argilla.txt
+          uv pip install -r requirements.txt --system
+          uv pip install -r requirements-argilla.txt --system
           zenml integration install aws s3 -y --uv
 
       - name: Connect to ZenML server