fix(deps): update module go.minekube.com/gate to v0.68.20 (minekube#888)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.examples/extend/simple-proxy/go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/robinbraemer/event v0.1.1
 	go.minekube.com/brigodier v0.0.2
 	go.minekube.com/common v0.4.0
-	go.minekube.com/gate v0.68.17
+	go.minekube.com/gate v0.68.20
 )
 
 require (
@@ -48,7 +48,7 @@ require (
 	github.com/mitchellh/mapstructure v1.5.1-0.20220423185008-bf980b35cac4 // indirect
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
-	github.com/pires/go-proxyproto v0.12.0 // indirect
+	github.com/pires/go-proxyproto v0.13.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
 	github.com/rs/xid v1.6.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect

.examples/extend/simple-proxy/go.sum

@@ -205,6 +205,8 @@ github.com/pires/go-proxyproto v0.9.1 h1:wTPjpyk41pJm1Im9BqHtPLuhxfjxL+qNfSikx9u
 github.com/pires/go-proxyproto v0.9.1/go.mod h1:ZKAAyp3cgy5Y5Mo4n9AlScrkCZwUy0g3Jf+slqQVcuU=
 github.com/pires/go-proxyproto v0.12.0 h1:TTCxD66dU898tahivkqc3hoceZp7P44FnorWyo9d5vM=
 github.com/pires/go-proxyproto v0.12.0/go.mod h1:qUvfqUMEoX7T8g0q7TQLDnhMjdTrxnG0hvpMn+7ePNI=
+github.com/pires/go-proxyproto v0.13.0 h1:kMrnyu6w92odDfOVzjYV6s5GqYGnIEKoxxsP38VrPSs=
+github.com/pires/go-proxyproto v0.13.0/go.mod h1:qUvfqUMEoX7T8g0q7TQLDnhMjdTrxnG0hvpMn+7ePNI=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=