Allow Peer property CORE_PEER_GOSSIP_EXTERNALENDPOINT to be modified

Signed-off-by: asararatnakar <asara.ratnakar@gmail.com>

go.mod

@@ -1,6 +1,6 @@
 module github.com/IBM-Blockchain/fabric-operator
 
-go 1.17
+go 1.18
 
 require (
 	github.com/cloudflare/cfssl v1.4.1
@@ -93,8 +93,6 @@ require (
 	github.com/mitchellh/mapstructure v1.3.3 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.1 // indirect
-	github.com/nxadm/tail v1.4.8 // indirect
-	github.com/onsi/ginkgo v1.16.4 // indirect
 	github.com/op/go-logging v0.0.0-20160315200505-970db520ece7 // indirect
 	github.com/pelletier/go-toml v1.2.0 // indirect
 	github.com/pierrec/lz4 v2.6.1+incompatible // indirect
@@ -135,7 +133,6 @@ require (
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.51.0 // indirect
 	gopkg.in/ldap.v2 v2.5.1 // indirect
-	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 	k8s.io/component-base v0.21.5 // indirect
 	k8s.io/gengo v0.0.0-20201214224949-b6c5ce23f027 // indirect