fix: Catch OS agnostic interrupt signal (hashicorp#755)

As per docs (https://pkg.go.dev/os/signal#hdr-Windows) os.Interrupt
is an OS-agnostic "signal" as opposed to syscall.SIGINT which is Unix-only.

This should enable us to catch interrupts on Windows too,
therefore do more graceful shutdowns and also write CPU profile.

Author: radeksimko

internal/cmd/inspect_module_command.go

@@ -98,7 +98,7 @@ func (c *InspectModuleCommand) inspect(rootPath string) error {
 	walker.SetLogger(c.logger)
 
 	ctx, cancel := ictx.WithSignalCancel(context.Background(),
-		c.logger, syscall.SIGINT, syscall.SIGTERM)
+		c.logger, os.Interrupt, syscall.SIGTERM)
 	defer cancel()
 
 	walker.EnqueuePath(rootPath)

internal/cmd/serve_command.go

@@ -96,7 +96,7 @@ func (c *ServeCommand) Run(args []string) int {
 	}
 
 	ctx, cancelFunc := lsctx.WithSignalCancel(context.Background(), logger,
-		syscall.SIGINT, syscall.SIGTERM)
+		os.Interrupt, syscall.SIGTERM)
 	defer cancelFunc()
 
 	// Setting this option as a CLI flag is deprecated