revert to last working flows

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

.github/workflows/a3-python-v2.md

@@ -24,9 +24,9 @@ tracker-id: a3-python-analysis
 steps:
   - name: Checkout Python source files
     run: |
-      git sparse-checkout init --cone
-      git sparse-checkout set src
+      git sparse-checkout add src
       echo "Source files checked out for Python analysis"
+source: z3prover/z3/a3/a3-python-v2.md@a91c5c58bd975f336bf5b744885ffd4b36b2d2ec
 ---
 
 # A3 Python Code Analysis Agent
@@ -36,6 +36,7 @@ You are an expert Python code analyst using the a3-python tool to identify bugs
 ## Current Context
 
 - **Repository**: ${{ github.repository }}
+- **Analysis Date**: $(date +%Y-%m-%d)
 - **Workspace**: ${{ github.workspace }}
 
 ## Phase 1: Install and Setup a3-python