multi: update to go 1.21

Author: jamaljsr

.github/workflows/main.yml

@@ -12,7 +12,7 @@ env:
   # If you change this value, please change it in the following files as well:
   # /Dockerfile
   # /dev.Dockerfile
-  GO_VERSION: 1.19
+  GO_VERSION: 1.21
 
 jobs:
   ########################

Dockerfile

@@ -35,7 +35,7 @@ RUN apk add --no-cache --update alpine-sdk \
 # If you change this value, please also update:
 # /dev.Dockerfile
 # /.github/workflows/main.yml
-FROM golang:1.19-alpine as golangbuilder
+FROM golang:1.21-alpine as golangbuilder
 
 # Instead of checking out from git again, we just copy the whole working
 # directory of the previous stage that includes the generated static assets.

dev.Dockerfile

@@ -13,7 +13,7 @@ RUN cd /go/src/github.com/lightninglabs/lightning-terminal/app \
 # If you change this value, please also update:
 # /Dockerfile
 # /.github/workflows/main.yml
-FROM golang:1.19-alpine as golangbuilder
+FROM golang:1.21-alpine as golangbuilder
 
 # Instead of checking out from git again, we just copy the whole working
 # directory of the previous stage that includes the generated static assets.

go.mod

@@ -230,4 +230,4 @@ replace github.com/lightninglabs/lightning-terminal/autopilotserverrpc => ./auto
 // taproot-assets dependency to function properly.
 replace google.golang.org/protobuf => github.com/lightninglabs/protobuf-go-hex-display v1.30.0-hex-display
 
-go 1.19
+go 1.21