Update test workflow to specify required test dependencies and improve installation process

Author: JakeTrock

.github/workflows/test.yml

@@ -48,8 +48,11 @@ jobs:
         
     - name: Install package and dependencies 
       run: |
-        # Install package and all its dependencies including optional ones
-        pip install -e ".[all]" requests || { echo 'Failed to install package'; exit 1; }
+        # Install all the specific packages that tests depend on
+        pip install requests anthropic openai langchain langchain-core langchain-openai langchain-anthropic || { echo 'Failed to install dependencies'; exit 1; }
+        
+        # Then install the package in editable mode
+        pip install -e ".[all]" || { echo 'Failed to install package'; exit 1; }
         
     - name: List installed packages
       run: pip list