fix macro

[joamatab]

• Is klayout_pyxs still supported? gdsfactory#3109
• When I output the script using gdsfactory.generic_tech.get_klayout_pyxs, I find that it does not work properly in klayout. The high probability of initial debug discovery is related to the deposit() function. The error message for klayout is as follows: gdsfactory#2843

[yspkm]

Hello @joamatab, I opened PR #19 for the remaining gdsfactory/gdsfactory#3109 item. It fixes the macro-load failure by importing KLayout GUI APIs directly from pya and adds regression coverage for KLayout 0.28.17 and 0.30.10. It also modernizes the CI workflow with cross-platform testing.