exchange go-syslog lib with a maintained version

The `go-syslog` library which is used at the moment hosted in the
[InfluxData's org](https://github.com/influxdata/go-syslog) is unmaintained and archived. This change exchanges the
old, unmaintained version with a maintained one from this [repository](https://github.com/leodido/go-syslog).

Author: chombium

src/go.mod

@@ -17,7 +17,6 @@ require (
 	github.com/dvsekhvalnov/jose2go v1.8.0
 	github.com/emirpasic/gods v1.18.1
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3
-	github.com/influxdata/go-syslog/v3 v3.0.1-0.20210608084020-ac565dc76ba6
 	github.com/onsi/ginkgo/v2 v2.23.4
 	github.com/onsi/gomega v1.37.0
 	github.com/prometheus/client_golang v1.22.0
@@ -34,6 +33,7 @@ require (
 	code.cloudfoundry.org/go-loggregator/v10 v10.2.0
 	github.com/cespare/xxhash/v2 v2.3.0
 	github.com/go-chi/chi/v5 v5.2.1
+	github.com/leodido/go-syslog/v4 v4.2.0
 	github.com/shirou/gopsutil/v4 v4.25.3
 )
 

src/go.sum

@@ -259,8 +259,6 @@ github.com/hashicorp/serf v0.8.3/go.mod h1:UpNcs7fFbpKIyZaUuSW6EPiH+eZC7OuyFD+wc
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
-github.com/influxdata/go-syslog/v3 v3.0.1-0.20210608084020-ac565dc76ba6 h1:s9ZL6ZhFF8y6ebnm1FLvobkzoIu5xwDQUcRPk/IEhpM=
-github.com/influxdata/go-syslog/v3 v3.0.1-0.20210608084020-ac565dc76ba6/go.mod h1:aXdIdfn2OcGnMhOTojXmwZqXKgC3MU5riiNvzwwG9OY=
 github.com/influxdata/influxdb v1.7.7/go.mod h1:qZna6X/4elxqT3yI9iZYdZrWWdeFOOprn86kgg4+IzY=
 github.com/jessevdk/go-flags v0.0.0-20180331124232-1c38ed7ad0cc/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af/go.mod h1:Nht3zPeWKUH0NzdCt2Blrr5ys8VGpn0CEB0cQHVjt7k=
@@ -289,7 +287,8 @@ github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/kylelemons/godebug v0.0.0-20160406211939-eadb3ce320cb/go.mod h1:B69LEHPfb2qLo0BaaOLcbitczOKLWTsrBG9LczfCD4k=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
-github.com/leodido/ragel-machinery v0.0.0-20181214104525-299bdde78165/go.mod h1:WZxr2/6a/Ar9bMDc2rN/LJrE/hF6bXE4LPyDSIxwAfg=
+github.com/leodido/go-syslog/v4 v4.2.0 h1:A7vpbYxsO4e2E8udaurkLlxP5LDpDbmPMsGnuhb7jVk=
+github.com/leodido/go-syslog/v4 v4.2.0/go.mod h1:eJ8rUfDN5OS6dOkCOBYlg2a+hbAg6pJa99QXXgMrd98=
 github.com/lufia/plan9stats v0.0.0-20250317134145-8bc96cf8fc35 h1:PpXWgLPs+Fqr325bN2FD2ISlRRztXibcX6e8f5FR5Dc=
 github.com/lufia/plan9stats v0.0.0-20250317134145-8bc96cf8fc35/go.mod h1:autxFIvghDt3jPTLoqZ9OZ7s9qTGNAWmYCjVFWPX/zg=
 github.com/mailru/easyjson v0.0.0-20160728113105-d5b7844b561a/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=

src/internal/syslog/server.go

@@ -11,9 +11,9 @@ import (
 	"code.cloudfoundry.org/go-loggregator/v10/rpc/loggregator_v2"
 	metrics "code.cloudfoundry.org/go-metric-registry"
 	"code.cloudfoundry.org/tlsconfig"
-	"github.com/influxdata/go-syslog/v3"
-	"github.com/influxdata/go-syslog/v3/octetcounting"
-	"github.com/influxdata/go-syslog/v3/rfc5424"
+	"github.com/leodido/go-syslog/v4"
+	"github.com/leodido/go-syslog/v4/octetcounting"
+	"github.com/leodido/go-syslog/v4/rfc5424"
 
 	"net"
 	"strconv"