Fix Rust Releases

[AkshatRai07]

This PR is a fix to #555
In this PR we,

• Fix MacOS linking errors.
• Remove staticlib generation.
• Make eko versioning dynamic, hence changing the .whl name.

[Copilot]

Pull request overview

This PR adjusts the Rust C-API build/test setup to address macOS dynamic linking issues and to stop producing a staticlib artifact during releases.

Changes:

• Configure the C-API crate to build only as a cdylib (no staticlib).
• Add a macOS-specific post-link step in the C-API test runner to rewrite an absolute dylib install name to use @rpath.
• Update the local build-capi task command used to generate the C-API distribution.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
pyproject.toml	Updates the build-capi task command for producing the C-API dist.
crates/ekore_capi/tests/run_tests.sh	Adds a macOS-specific install-name rewrite to make test binaries find the dylib via @rpath.
crates/ekore_capi/Cargo.toml	Removes staticlib from the crate’s crate-type list to stop generating static libraries.

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[AkshatRai07]

Doubt: Should Rust, C-API, and Python API tests be run on all OS and Architecture combinations which we will use when publishing?

Suggestion: Please try changing the permission of PYPI_TOKEN, and run the entire Maturin workflow, only then merge this PR. Else we will have to wait for v0.15.6.

[AkshatRai07]

There was one more issue, if you see the artifacts of maturin.yml, the version of eko-rs is 0.0.0. I checked locally and changing the version to be dynamic worked.