build: require python-neo-lzf>=0.3.5 and remove ARM64 workarounds (#59)

The upstream package `python-neo-lzf` v0.3.5 now provides pre-built wheels for Linux aarch64.
This commit:
- Bumps the dependency to `python-neo-lzf>=0.3.5`.
- Removes the conditional fallback to `python-lzf`.
- Cleans up `pyproject.toml` to use standard dependencies for all platforms.y

Signed-off-by: urasakikeisuke <keisuke.urasaki@map4.jp>

Author: urasakikeisuke

pyproject.toml

@@ -6,16 +6,7 @@ authors = [{ name = "urasakikeisuke", email = "keisuke.urasaki@map4.jp" }]
 dependencies = [
     "numpy>=1.21.0",
     "pydantic >=1.10.8, <3.0.0",
-
-    # NOTE: `python-neo-lzf` currently lacks pre-built wheels for Linux aarch64.
-    # To avoid compilation errors on Linux ARM environments, we use `python-lzf` as a fallback.
-    # macOS ARM64 (Apple Silicon) is supported by `python-neo-lzf` (Universal2), so it is not affected.
-
-    # 1. Fallback: Use `python-lzf` ONLY on Linux ARM64.
-    "python-lzf; sys_platform == 'linux' and (platform_machine == 'aarch64' or platform_machine == 'arm64')",
-
-    # 2. Standard: Use `python-neo-lzf` on all other platforms (macOS, Windows, x86_64 Linux, etc.).
-    "python-neo-lzf>=0.3.0; sys_platform != 'linux' or (platform_machine != 'aarch64' and platform_machine != 'arm64')",
+    "python-neo-lzf>=0.3.5",
 ]
 readme = "README.md"
 requires-python = ">= 3.8.2"