Fix regex and process name (#16647)

### Why I did it

### How I did it

Fix regex such that dhcp bind failure event is detected as well as process name since dhcp relay processes that need to be detected are dhcprelay6 and dhcrelay.

#### How to verify it

Manual testing and nightly test event

dockers/docker-dhcp-relay/dhcp_relay_regex.json

@@ -6,7 +6,7 @@
     },
     {
         "tag": "dhcp-relay-bind-failure",
-        "regex": "Failed to bind socket to (link local|global) ipv6 address on interface ([a-zA-Z0-9]*)",
-        "params": [ "type:ret=(arg==\"link local\")and\"local\"or\"global\")", "vlan" ]
+        "regex": ".*Failed to bind socket to (link local|global) ipv6 address on interface ([a-zA-Z0-9]*).*",
+        "params": [ "type:ret=(arg==\"link local\")and\"local\"or\"global\"", "vlan" ]
     }
 ]

dockers/docker-dhcp-relay/events_info.json

@@ -2,7 +2,7 @@
     "yang_module": "sonic-events-dhcp-relay",
     "proclist": [
         {
-            "name": "dhcp_relay",
+            "name": "dhc*",
             "parse_json": "dhcp_relay_regex.json"
         }
     ]