chore(release): v0.12.2

Two download fixes since v0.12.1: transfers longer than five minutes were
being cut off by a total request deadline and restarted from zero, and the
progress bar read "0%" for the whole of a transcode download.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src-tauri/Cargo.lock

@@ -2275,7 +2275,7 @@ dependencies = [
 
 [[package]]
 name = "jellytau"
-version = "0.12.1"
+version = "0.12.2"
 dependencies = [
  "aes-gcm",
  "argon2",

src-tauri/Cargo.toml

@@ -4,7 +4,7 @@ name = "jellytau"
 # `player-conformance`, and a second binary makes a bare `cargo run` —
 # which `tauri dev` issues — ambiguous.
 default-run = "jellytau"
-version = "0.12.1"
+version = "0.12.2"
 description = "A cross-platform Jellyfin client"
 authors = ["Duncan Tourolle <duncan@tourolle.paris>"]
 license = "MIT"

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "JellyTau",
-  "version": "0.12.1",
+  "version": "0.12.2",
   "identifier": "com.dtourolle.jellytau",
   "build": {
     "beforeDevCommand": "bun run dev",