feat: Add libepScriptLib.dylib for macOS

[zuhanit]

This fixes eudplib build error on macOS by adding libepScriptLib.dylib.

[zuhanit]

I've tried to add libepScriptLib.so in eudplib wheel, but maturin won't include every *.so file.

• libepScriptLib.so: not included
• pyepScript.cpython-312-x86_64-linux-gnu.so: not included
• pyepScript_raw.so: not included
• libepScriptLib.txt: included

maturin build
unzip ./src/rust/target/wheels/eudplib-0.80.2-cp310-abi3-manylinux_2_34_x86_64.whl | grep **/*.so
    83169  2025-04-02 15:45   eudplib.libs/libbz2-218c4abd.so.1.0
 31346761  2025-04-02 15:45   eudplib/bindings/_rust.abi3.so

Build on both Python 3.11 and 3.12 same result.

[zuhanit]

For year ago, I think adding epScript libraries by manually is not good. Instead, using GitHub workflow. This related to armoha/euddraft#136. So close this PR.