chore(version): bump to 1.1.3

Patch. Fixes two Windows installer defects: an MSI upgrade no longer leaves
the app without libmpv until a second install (B62), and a taskbar pin keeps
its icon, which the exe now carries itself (B63). The catalog schema and
on-disk data are unchanged from 1.1.2.

Cargo.toml

@@ -11,7 +11,7 @@ members = [
 ]
 
 [workspace.package]
-version = "1.1.2"
+version = "1.1.3"
 edition = "2024"
 license = "MIT"
 repository = "https://github.com/narrrl/proton-stream"