fix(deps): update module github.com/gin-gonic/gin from v1.9.0 to v1.9.1 [security]

Author: figure-renovate[bot]

go.mod

@@ -5,7 +5,7 @@ go 1.18
 require (
 	github.com/btcsuite/btcd v0.22.2
 	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce
-	github.com/gin-gonic/gin v1.9.0
+	github.com/gin-gonic/gin v1.9.1
 	github.com/gogo/protobuf v1.3.2
 	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.8.2