chore: release v0.6.0 (#87)

Bump version to 0.6.0 in build.zig.zon and src/main.zig for the v0.6.0 release.

Author: kylecarbs

build.zig.zon

@@ -1,6 +1,6 @@
 .{
     .name = .boo,
-    .version = "0.5.24",
+    .version = "0.6.0",
     .fingerprint = 0x8b7acdfd255f0e34,
     .minimum_zig_version = "0.15.2",
     .dependencies = .{

src/main.zig

@@ -11,7 +11,7 @@ const paths = @import("paths.zig");
 const protocol = @import("protocol.zig");
 const ui = @import("ui.zig");
 
-pub const version = "0.5.24";
+pub const version = "0.6.0";
 
 /// Exit codes, documented in `boo help`.
 const exit_runtime: u8 = 1;