fix: update libraries_path to use relative path for better portability

Author: tapegoji

examples/skywater/print_subcircuit_nodes.py

@@ -4,9 +4,8 @@
 
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-libraries_path = "/home/asepahvand/repos/skywater-pdk/libraries/sky130_fd_pr/latest/models/sky130.lib.spice"
-# libraries_path = '/home/asepahvand/repos/skywater-pdk/libraries/sky130_fd_pr/latest/cells/res_high_po/sky130_fd_pr__res_high_po.model.spice'
-# libraries_path = "/home/asepahvand/repos/spice_libraries/"
+libraries_path = "../../../skywater-pdk/libraries/sky130_fd_pr/latest/models/sky130.lib.spice"
+
 spice_lib = SpiceLibrary(libraries_path, recurse=True, section="tt")
 
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