Bump github.com/pires/go-proxyproto from 0.1.3 to 0.2.0 (#265)

Bumps [github.com/pires/go-proxyproto](https://github.com/pires/go-proxyproto) from 0.1.3 to 0.2.0.
- [Release notes](https://github.com/pires/go-proxyproto/releases)
- [Commits](https://github.com/pires/go-proxyproto/compare/v0.1.3...v0.2.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/google/go-cmp v0.5.2
 	github.com/gorilla/websocket v1.4.2
 	github.com/miekg/dns v1.1.31
-	github.com/pires/go-proxyproto v0.1.3
+	github.com/pires/go-proxyproto v0.2.0
 	github.com/seiflotfy/cuckoofilter v0.0.0-20200511222245-56093a4d3841
 	github.com/stretchr/testify v1.6.1
 	github.com/xiaokangwang/VSign v0.0.0-20200828155424-dc1c86b73fbf

go.sum

@@ -42,6 +42,8 @@ github.com/miekg/dns v1.1.31/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2/go.mod h1:iIss55rKnNBTvrwdmkUpLnDpZoAHvWaiq5+iMmen4AE=
 github.com/pires/go-proxyproto v0.1.3 h1:2XEuhsQluSNA5QIQkiUv8PfgZ51sNYIQkq/yFquiSQM=
 github.com/pires/go-proxyproto v0.1.3/go.mod h1:Odh9VFOZJCf9G8cLW5o435Xf1J95Jw9Gw5rnCjcwzAY=
+github.com/pires/go-proxyproto v0.2.0 h1:WyYKlv9pkt77b+LjMvPfwrsAxviaGCFhG4KDIy1ofLY=
+github.com/pires/go-proxyproto v0.2.0/go.mod h1:Odh9VFOZJCf9G8cLW5o435Xf1J95Jw9Gw5rnCjcwzAY=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/seiflotfy/cuckoofilter v0.0.0-20200511222245-56093a4d3841 h1:pnfutQFsV7ySmHUeX6ANGfPsBo29RctUvDn8G3rmJVw=