fix: Regexp of network devices to remove

Fix the regexp that compares agaisnt the entwork interfaces to find
urunc tap devices. Make it follow the correct naming convention we use
for tap devices in urunc.

Signed-off-by: Charalampos Mainas <charalampos.mainas@gmail.com>

Author: cmainas

pkg/network/network.go

@@ -278,7 +278,7 @@ func CleanupAllUruncTaps() error {
 	}
 
 	var retErr error
-	tapRe := regexp.MustCompile(`^tap_\d+_urunc$`)
+	tapRe := regexp.MustCompile(`^tap\d+_urunc$`)
 	for _, link := range links {
 		attrs := link.Attrs()
 		if attrs == nil {