chore: update example

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

_example/go.mod

@@ -3,6 +3,6 @@ module example
 go 1.16
 
 require (
-	github.com/golang-queue/nats v0.0.0-20210815054209-f907226e91ba
-	github.com/golang-queue/queue v0.0.6
+	github.com/golang-queue/nats v0.0.2-0.20210822122542-200fdcf19ebf
+	github.com/golang-queue/queue v0.0.7
 )

_example/go.sum

@@ -1,9 +1,9 @@
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/golang-queue/nats v0.0.0-20210815054209-f907226e91ba h1:mz3w8xo2U9z9ZsZiJPyHPpvmo7Qh4WxP5NdHtkvL/MA=
-github.com/golang-queue/nats v0.0.0-20210815054209-f907226e91ba/go.mod h1:B+5LDTDILJiH9eplW7ETKKMlMA4vRDAvOkQzFjmVQ/o=
-github.com/golang-queue/queue v0.0.6 h1:TLd0lSM7uNgXXj7SXSMfyaZUwRgbOu9tq6UfZXXELnA=
-github.com/golang-queue/queue v0.0.6/go.mod h1:IeIGBO1largDrFEaxDgIckoAFIUTn0eolTQris8bm08=
+github.com/golang-queue/nats v0.0.2-0.20210822122542-200fdcf19ebf h1:KD17cM0Cd9N7ztZcY8KenaXsCV3FE023C/QhtCmN2FI=
+github.com/golang-queue/nats v0.0.2-0.20210822122542-200fdcf19ebf/go.mod h1:dzXOwbx20CJ5oX4UiBIDyfedCiR5sBWWKJVXmiRlDYc=
+github.com/golang-queue/queue v0.0.7 h1:WENCPyPBcIWYgBFSAZ8USGtwmxeCeMkhjwuyM0MAi84=
+github.com/golang-queue/queue v0.0.7/go.mod h1:JS5tYJacahCjafcplU5idNLX2vkYioqh6wEDX5o9Nms=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
@@ -13,7 +13,6 @@ github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
-github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
@@ -24,18 +23,17 @@ github.com/minio/highwayhash v1.0.1 h1:dZ6IIu8Z14VlC0VpfKofAhCy74wu/Qb5gcn52yWoz
 github.com/minio/highwayhash v1.0.1/go.mod h1:BQskDq+xkJ12lmlUUi7U0M5Swg3EWR+dLTk+kldvVxY=
 github.com/nats-io/jwt v1.2.2 h1:w3GMTO969dFg+UOKTmmyuu7IGdusK+7Ytlt//OYH/uU=
 github.com/nats-io/jwt v1.2.2/go.mod h1:/xX356yQA6LuXI9xWW7mZNpxgF2mBmGecH+Fj34sP5Q=
-github.com/nats-io/jwt/v2 v2.0.2 h1:ejVCLO8gu6/4bOKIHQpmB5UhhUJfAQw55yvLWpfmKjI=
-github.com/nats-io/jwt/v2 v2.0.2/go.mod h1:VRP+deawSXyhNjXmxPCHskrR6Mq50BqpEI5SEcNiGlY=
-github.com/nats-io/nats-server/v2 v2.3.2 h1:SGJLWrjBHsl0DsdY8PeTR3YKEfiUEYVVq2STw9d8MSY=
-github.com/nats-io/nats-server/v2 v2.3.2/go.mod h1:dUf7Cm5z5LbciFVwWx54owyCKm8x4/hL6p7rrljhLFY=
+github.com/nats-io/jwt/v2 v2.0.3 h1:i/O6cmIsjpcQyWDYNcq2JyZ3/VTF8SJ4JWluI5OhpvI=
+github.com/nats-io/jwt/v2 v2.0.3/go.mod h1:VRP+deawSXyhNjXmxPCHskrR6Mq50BqpEI5SEcNiGlY=
+github.com/nats-io/nats-server/v2 v2.3.4 h1:WcNa6HDFX8gjZPHb8CJ9wxRHEjJSlhWUb/MKb6/mlUY=
+github.com/nats-io/nats-server/v2 v2.3.4/go.mod h1:3mtbaN5GkCo/Z5T3nNj0I0/W1fPkKzLiDC6jjWJKp98=
 github.com/nats-io/nats.go v1.11.1-0.20210623165838-4b75fc59ae30 h1:9GqilBhZaR3xYis0JgMlJjNw933WIobdjKhilXm+Vls=
 github.com/nats-io/nats.go v1.11.1-0.20210623165838-4b75fc59ae30/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w=
 github.com/nats-io/nkeys v0.2.0/go.mod h1:XdZpAbhgyyODYqjTawOnIOI7VlbKSarI9Gfy1tqEu/s=
 github.com/nats-io/nkeys v0.3.0 h1:cgM5tL53EvYRU+2YLXIK0G2mJtK12Ft9oeooSZMA2G8=
 github.com/nats-io/nkeys v0.3.0/go.mod h1:gvUNGjVcM2IPr5rCsRsC6Wb3Hr2CQAm08dsxtV6A5y4=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
-github.com/nsqio/go-nsq v1.0.8/go.mod h1:vKq36oyeVXgsS5Q8YEO7WghqidAVXQlcFxzQbQTuDEY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=