Cargo build script of zenoh-plugin-rest modifies source directory

[fuzzypixelz]

Describe the bug

When packaging/publishing zenoh-plugin-rest on Windows I get:

error: failed to verify package tarball
  
Caused by:
  Source directory was modified by build.rs during cargo publish. Build scripts should not modify anything outside of OUT_DIR.
  Changed: D:\a\zenoh-backend-filesystem\zenoh-backend-filesystem\zenoh\target\package\zenoh-plugin-rest-0.11.0-dev\config_schema.json5

This happens because on Windows line breaks are CRLF and not LF.

Build scripts should not modify any files outside OUTDIR.

@milyin

To reproduce

1. See https://github.com/eclipse-zenoh/zenoh-backend-filesystem/actions/runs/8537311104/job/23387616672

System info

• Platform: Windows 10
• Zenoh ref: 6799a92

[fuzzypixelz]

Resolved in #939.