Close the socket listener explicitly (#663)

Author: Rohit-0505

Makefile

@@ -161,9 +161,9 @@ ADDLICENSE ?= $(LOCALBIN)/addlicense-$(ADDLICENSE_VERSION)
 
 ## Tool Versions
 KUSTOMIZE_VERSION ?= v5.3.0
-CONTROLLER_TOOLS_VERSION ?= v0.16.0
-ENVTEST_VERSION ?= release-0.19
-GOLANGCI_LINT_VERSION ?= v2.1
+CONTROLLER_TOOLS_VERSION ?= v0.19.0
+ENVTEST_VERSION ?= release-0.22
+GOLANGCI_LINT_VERSION ?= v2.6
 ADDLICENSE_VERSION ?= v1.1.1
 
 .PHONY: kustomize

cmd/libvirt-provider/app/app.go

@@ -457,6 +457,11 @@ func runGRPCServer(ctx context.Context, setupLog logr.Logger, log logr.Logger, s
 	if err != nil {
 		return fmt.Errorf("failed to listen: %w", err)
 	}
+	defer func() {
+		if err := l.Close(); err != nil {
+			setupLog.Error(err, "failed to close listener")
+		}
+	}()
 
 	setupLog.Info("Starting grpc server", "Address", l.Addr().String())
 	go func() {