switch to golang 1.21

mblaschke · mblaschke · commit 75c15379579f · 2023-10-24T00:12:45.000+02:00
Signed-off-by: Markus Blaschke &lt;mblaschke82@gmail.com&gt;
diff --git a/Dockerfile b/Dockerfile
@@ -1,7 +1,7 @@
 #############################################
 # Build
 #############################################
-FROM --platform=$BUILDPLATFORM golang:1.20-alpine as build
+FROM --platform=$BUILDPLATFORM golang:1.21-alpine as build
 
 RUN apk upgrade --no-cache --force
 RUN apk add --update build-base make git
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module github.com/webdevops/azure-metrics-exporter
 
-go 1.20
+go 1.21
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.8.0-beta.1
