upgrade to gdsfactory9

[MatthewMckee4]

Summary by Sourcery

Refactor the code to use column_pitch and row_pitch instead of spacing for placing references in arrays. Update the build system to use uv instead of pip for dependency management. Update the CI configuration to use uv for dependency management and to test the code on Python 3.11, 3.12 and 3.13.

Enhancements:

• Refactor the code to use column_pitch and row_pitch instead of spacing for placing references in arrays, improving code readability and maintainability.
• Update gdsfactory dependency to version 9.0.1.

Build:

• Update the build system to use uv instead of pip for dependency management, improving build speed and reliability.

CI:

• Update the CI configuration to use uv for dependency management, improving CI build speed and reliability.
• Update the CI configuration to test the code on Python 3.11, 3.12 and 3.13.
• Use pre-commit GitHub Action for running pre-commit hooks.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request migrates the code to use column_pitch and row_pitch instead of spacing for component placement, updates the development dependencies and testing framework, and modifies the post_process argument in gf.import_gds to accept a list of functions.

Updated class diagram for component placement

classDiagram
    class Component {
        +add_ref(component, rows, columns, column_pitch, row_pitch)
    }
    note for Component "Replaced spacing with column_pitch and row_pitch"

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Updated class diagram for gf.import_gds

classDiagram
    class gf.import_gds {
        +post_process: List[Callable]
    }
    note for gf.import_gds "post_process now accepts a list of functions"

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File-Level Changes

Change	Details	Files
Replaced the spacing argument with column_pitch and row_pitch in multiple instances of c.add_ref calls. This change aims to provide more explicit control over the arrangement of referenced components, enhancing the precision of component placement.	Replaced spacing with column_pitch and row_pitch in nmos.py. Replaced spacing with column_pitch and row_pitch in pmos.py. Replaced spacing with column_pitch and row_pitch in nmos_5v.py. Replaced spacing with column_pitch and row_pitch in pmos_5v.py. Replaced spacing with column_pitch and row_pitch in npn_W1L1.py. Replaced spacing with column_pitch and row_pitch in npn_W1L2.py. Replaced spacing with column_pitch and row_pitch in pnp.py. Replaced spacing with column_pitch and row_pitch in p_n_poly.py. Replaced spacing with column_pitch and row_pitch in p_p_poly.py. Replaced spacing with column_pitch and row_pitch in mimcap_1.py. Replaced spacing with column_pitch and row_pitch in mimcap_2.py. Replaced spacing with column_pitch and row_pitch in via_generator.py. Replaced spacing with column_pitch and row_pitch in nmos.py.	sky130/pcells/nmos.py sky130/pcells/pmos.py sky130/pcells/nmos_5v.py sky130/pcells/pmos_5v.py sky130/pcells/npn_W1L1.py sky130/pcells/npn_W1L2.py sky130/pcells/pnp.py sky130/pcells/p_n_poly.py sky130/pcells/p_p_poly.py sky130/pcells/mimcap_1.py sky130/pcells/mimcap_2.py sky130/pcells/via_generator.py sky130/nmos.py
Updated the development dependencies and testing framework.	Replaced pip with uv for dependency management in Makefile. Added pytest-randomly and pytest-xdist to the dev dependencies in pyproject.toml. Updated gdsfactory dependency to version 9.0.1 in pyproject.toml. Set requires-python to 3.11 in pyproject.toml. Removed python-version from pre-commit job in .github/workflows/test_code.yml. Added test job with a matrix strategy for different Python versions and operating systems in .github/workflows/test_code.yml. Replaced make install with uv sync --all-extras in .github/workflows/test_code.yml. Removed layers.py.	Makefile pyproject.toml .github/workflows/test_code.yml sky130/layers.py
Modified the post_process argument in gf.import_gds to accept a list of functions.	Changed post_process=add_ports to post_process=[add_ports] in sky130/components.py.	sky130/components.py

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