Update for E2EE

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "vendor/serenity"]
+	path = vendor/serenity
+	url = https://github.com/serenity-rs/serenity.git
+	branch = next

Cargo.toml

@@ -7,7 +7,7 @@ authors = ["jellywx <judesouthworth@pm.me>"]
 edition = "2018"
 
 [dependencies]
-songbird = { version = "0.4", features = ["builtin-queue"] }
+songbird = { git = "https://github.com/beerpsi-forks/songbird.git", branch = "davey", features = ["builtin-queue"] }
 poise = "0.6.1"
 sqlx = { version = "0.7", default-features = false, features = ["runtime-tokio-rustls", "macros", "mysql", "bigdecimal", "migrate"] }
 tokio = { version = "1", features = ["fs", "process", "io-util", "rt-multi-thread"] }
@@ -21,6 +21,9 @@ dotenv = "0.15"
 prometheus = { version = "0.13", optional = true }
 axum = { version = "0.7", optional = true }
 
+[patch."https://github.com/serenity-rs/serenity.git"]
+serenity-voice-model = { path = "vendor/serenity/voice-model" }
+
 [dependencies.symphonia]
 version = "0.5"
 features = ["ogg"]