Update golanci-lint

mtglib/internal/relay/init_test.go

@@ -25,7 +25,7 @@ func (r *rwcMock) Read(p []byte) (int, error) {
 		return 0, io.EOF
 	}
 
-	return r.Buffer.Read(p)
+	return r.Buffer.Read(p) // nolint: wrapcheck
 }
 
 func (r *rwcMock) Write(p []byte) (int, error) {
@@ -36,7 +36,7 @@ func (r *rwcMock) Write(p []byte) (int, error) {
 		return 0, io.EOF
 	}
 
-	return r.Buffer.Write(p)
+	return r.Buffer.Write(p) // nolint: wrapcheck
 }
 
 func (r *rwcMock) Close() error {

mtglib/internal/relay/pools.go

@@ -18,7 +18,11 @@ var relayPool = sync.Pool{
 func AcquireRelay(ctx context.Context, logger Logger, bufferSize int, idleTimeout time.Duration) *Relay {
 	ctx, cancel := context.WithCancel(ctx)
 
-	r := relayPool.Get().(*Relay)
+	r, ok := relayPool.Get().(*Relay)
+	if !ok {
+		panic("Relay pool has no relay!")
+	}
+
 	r.ctx = ctx
 	r.ctxCancel = cancel
 	r.logger = logger