Update module github.com/prometheus/client_golang to v1.20.5

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.20.4-alpine3.16 as build
+FROM golang:1.18.4-alpine3.16 as build
 WORKDIR /build
 COPY . .
 RUN go get -d -v .

go.mod

@@ -3,6 +3,6 @@ module github.com/jamesog/aaisp-chaos
 go 1.13
 
 require (
-	github.com/prometheus/client_golang v1.14.0
+	github.com/prometheus/client_golang v1.20.5
 	github.com/rs/zerolog v1.27.0
 )