Fix IPv6 address parsing in envoy-logs parser

.tests/envoy-logs/envoy.log

@@ -2,3 +2,9 @@
 2025-12-31T18:22:06.456373561+01:00 stdout F {":authority":"10.0.0.13","bytes_received":0,"bytes_sent":0,"connection_termination_details":null,"downstream_local_address":"10.42.0.77:10080","downstream_remote_address":"192.168.1.45:33045","duration":0,"method":"GET","protocol":"HTTP/1.1","requested_server_name":null,"response_code":301,"response_code_details":"direct_response","response_flags":"-","route_name":"httproute/app/http-to-https-filter-redirect/rule/0/match/0/*","start_time":"2025-12-31T17:22:04.951Z","upstream_cluster":null,"upstream_host":null,"upstream_local_address":null,"upstream_transport_failure_reason":null,"user-agent":"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36","x-envoy-origin-path":"/","x-envoy-upstream-service-time":null,"x-forwarded-for":"192.168.1.45","x-request-id":"a9864e02-c6f5-4375-a27d-3ffd7f312811"}
 2025-12-31T18:30:06.518608527+01:00 stdout F {":authority":"foo.example.com","bytes_received":0,"bytes_sent":0,"connection_termination_details":null,"downstream_local_address":"10.42.0.77:10443","downstream_remote_address":"172.16.2.33:49578","duration":5,"method":"HEAD","protocol":"HTTP/2","requested_server_name":null,"response_code":404,"response_code_details":"via_upstream","response_flags":"-","route_name":"httproute/app/app-foo-example-com/rule/0/match/0/foo_example_com","start_time":"2025-12-31T17:30:03.228Z","upstream_cluster":"httproute/app/app-foo-example-com/rule/0","upstream_host":"10.42.0.88:1337","upstream_local_address":"10.42.0.77:47106","upstream_transport_failure_reason":null,"user-agent":"curl/8.5.0","x-envoy-origin-path":"/.env","x-envoy-upstream-service-time":null,"x-forwarded-for":"172.16.2.33","x-request-id":"fff03852-5ae8-468b-a528-434d095ddc49"}
 2025-12-31T19:00:00.310000000+01:00 stdout F [2016-04-15T20:17:00.310Z] "POST /api/v1/locations HTTP/2" 204 - 154 0 226 100 "10.0.35.28" "nsq2http" "cc21d9b0-cf5c-432b-8c7e-98aeb7988cd2" "locations" "tcp://10.0.2.1:80"
+2026-01-24T01:34:36.743000000+00:00 stdout F [2026-01-24T01:34:36.743Z] "GET /test HTTP/1.1" 200 - 0 256 50 25 "[fd00:1234:5678::5a24]" "curl/8.10.1" "test-request-id" "example.com" "tcp://[fd00:1234:5678::e18]:8080"
+2026-01-24T01:34:36.743000000+00:00 stdout F {":authority":"example.com","bytes_received":0,"bytes_sent":0,"connection_termination_details":null,"downstream_local_address":"[fd00:1234:5678::e18]:10080","downstream_remote_address":"[fd00:1234:5678::5a24]:43000","duration":0,"method":"GET","protocol":"HTTP/1.1","requested_server_name":null,"response_code":301,"response_code_details":"direct_response","response_flags":"-","route_name":"httproute/namespace/route-name/rule/0/match/0/*","start_time":"2026-01-24T01:34:36.743Z","upstream_cluster":null,"upstream_host":null,"upstream_local_address":null,"upstream_transport_failure_reason":null,"user-agent":"curl/8.10.1","x-envoy-origin-path":"/","x-envoy-upstream-service-time":null,"x-forwarded-for":"fd00:1234:5678::5a24","x-request-id":"6d6e08ba-02a3-4a26-968a-2183aa33a56d"}
+2026-01-24T01:35:00.000000000+00:00 stdout F {":authority":"proxy.example.com","bytes_received":0,"bytes_sent":512,"connection_termination_details":null,"downstream_local_address":"10.42.0.77:10443","downstream_remote_address":"10.42.0.1:54321","duration":15,"method":"GET","protocol":"HTTP/2","requested_server_name":null,"response_code":200,"response_code_details":"via_upstream","response_flags":"-","route_name":"httproute/app/proxy-example-com/rule/0/match/0/proxy_example_com","start_time":"2026-01-24T01:35:00.000Z","upstream_cluster":"httproute/app/proxy-example-com/rule/0","upstream_host":"10.42.0.82:8080","upstream_local_address":"10.42.0.77:51216","upstream_transport_failure_reason":null,"user-agent":"Mozilla/5.0","x-envoy-origin-path":"/api/data","x-envoy-upstream-service-time":null,"x-forwarded-for":"192.168.1.100, 10.42.0.1","x-request-id":"multi-ip-v4-test-id"}
+2026-01-24T01:36:00.000000000+00:00 stdout F {":authority":"proxy6.example.com","bytes_received":0,"bytes_sent":1024,"connection_termination_details":null,"downstream_local_address":"[fd00:1234:5678::e18]:10080","downstream_remote_address":"[fd00:1234:5678::1]:54321","duration":20,"method":"POST","protocol":"HTTP/1.1","requested_server_name":null,"response_code":201,"response_code_details":"via_upstream","response_flags":"-","route_name":"httproute/app/proxy6-example-com/rule/0/match/0/proxy6_example_com","start_time":"2026-01-24T01:36:00.000Z","upstream_cluster":"httproute/app/proxy6-example-com/rule/0","upstream_host":"[fd00:1234:5678::e18]:8080","upstream_local_address":"[fd00:1234:5678::e18]:51216","upstream_transport_failure_reason":null,"user-agent":"curl/8.10.1","x-envoy-origin-path":"/api/create","x-envoy-upstream-service-time":null,"x-forwarded-for":"fd00:1234:5678::5a24, [fd00:1234:5678::1]:54321","x-request-id":"multi-ip-v6-test-id"}
+2026-01-24T01:37:00.000000000+00:00 stdout F [2026-01-24T01:37:00.000Z] "GET /api/proxy HTTP/1.1" 200 - 0 512 30 15 "192.168.1.100, 10.42.0.1" "Mozilla/5.0" "multi-ip-clf-v4" "proxy.example.com" "tcp://10.42.0.82:8080"
+2026-01-24T01:38:00.000000000+00:00 stdout F [2026-01-24T01:38:00.000Z] "POST /api/proxy6 HTTP/1.1" 201 - 0 1024 40 20 "fd00:1234:5678::5a24, [fd00:1234:5678::1]:54321" "curl/8.10.1" "multi-ip-clf-v6" "proxy6.example.com" "tcp://[fd00:1234:5678::e18]:8080"