🔧 build(compile Werror): reduce warning

src/packet/packet_dump.cpp

@@ -37,7 +37,7 @@ int packet_dump_pcap(const struct packet *pkt, const char *file)
     const char *data = packet_get_raw_data(pkt);
     uint16_t len = packet_get_raw_len(pkt);
 
-    struct pcap_pkt_hdr pkt_hdr = {0};
+    struct pcap_pkt_hdr pkt_hdr = {};
     struct pcap_file_hdr file_hdr = {
         .magic = 0xA1B2C3D4,
         .version_major = 0x0002,
@@ -60,7 +60,7 @@ int packet_dump_pcap(const struct packet *pkt, const char *file)
         return -1;
     }
 
-    struct timeval ts = {0};
+    struct timeval ts = {};
     gettimeofday(&ts, NULL);
 
     pkt_hdr.tv_sec = ts.tv_sec;