Update cpp_extra.yml

Author: amoeba

.github/workflows/cpp_extra.yml

@@ -618,6 +618,15 @@ jobs:
         shell: cmd
         run: |
           call "cpp\src\arrow\flight\sql\odbc\tests\install_odbc.cmd" ${{ github.workspace }}\build\cpp\%ARROW_BUILD_TYPE%\arrow_flight_sql_odbc.dll
+      - name: Upload test executable and dependencies for debugging
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: arrow-flight-sql-odbc-test-debug
+          path: |
+            build/cpp/${{ env.ARROW_BUILD_TYPE }}/arrow-flight-sql-odbc-test.exe
+            build/cpp/${{ env.ARROW_BUILD_TYPE }}/*.dll
+          if-no-files-found: warn
       - name: Test
         shell: cmd
         run: |