chore: remove ffmpeg dependency from package configuration

Cargo.toml

@@ -21,7 +21,7 @@ exclude = [
 maintainer = "Elias Wendland <eliaswendland@pm.me>"
 copyright = "2026, Elias Wendland"
 extended-description = "A program attempting to be a universal file converter"
-depends = "ffmpeg, $auto"
+depends = "$auto"
 section = "utility"
 priority = "optional"
 assets = [
@@ -37,7 +37,6 @@ assets = [
 ]
 
 [package.metadata.generate-rpm.requires]
-ffmpeg = "*"
 
 [build-dependencies]
 clap = { version = "4.6.1", features = ["derive"] }