fix(ci): use relative path for TZIF_DATA_PATH on Windows

Author: abitofhelp

.github/workflows/windows-ci.yml

@@ -113,13 +113,14 @@ jobs:
       - name: Run integration tests
         shell: bash
         env:
-          # Add trailing backslash to prevent tzif from adding forward slash
-          TZIF_DATA_PATH: ${{ github.workspace }}\data\tzif\20251105T093308Z\
+          # Use relative path - absolute paths with drive letters cause issues
+          TZIF_DATA_PATH: data/tzif/20251105T093308Z
         run: |
           echo "========================================"
           echo "Running Integration Tests"
           echo "========================================"
           echo "TZIF_DATA_PATH=$TZIF_DATA_PATH"
+          echo "PWD=$(pwd)"
           ./test/bin/integration_runner.exe
           echo "Integration tests complete"