chore: 将 gomplerate 从间接依赖改为直接依赖

由于 pkg/audio/resampler.go 直接导入并使用 gomplerate，
go mod tidy 自动将其从 indirect 改为 direct 依赖。

go.mod

@@ -17,6 +17,7 @@ require (
 	github.com/urfave/cli/v3 v3.8.0
 	github.com/warthog618/go-gpiocdev v0.9.1
 	github.com/youpy/go-wav v0.3.2
+	github.com/zeozeozeo/gomplerate v0.0.0-20250404113140-0fbb236df825
 	go.uber.org/zap v1.27.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 )
@@ -53,7 +54,6 @@ require (
 	github.com/ysmood/gson v0.7.3 // indirect
 	github.com/ysmood/leakless v0.9.0 // indirect
 	github.com/zaf/g711 v1.4.0 // indirect
-	github.com/zeozeozeo/gomplerate v0.0.0-20250404113140-0fbb236df825 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect