Bump version to 0.1.0-alpha.2

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: jayhesselberth

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "fcount-rs"
-version = "0.1.0-alpha.1"
+version = "0.1.0-alpha.2"
 edition = "2021"
 authors = ["Jay Hesselberth <jay.hesselberth@gmail.com>"]
 description = "Ultrafast feature counting for RNA-seq data"