chore: Build with Go 1.23 (#551)

Signed-off-by: James Hillyerd <james@hillyerd.com>

.github/workflows/build-and-test.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         go:
-          - '1.21'
+          - '1.23'
     steps:
       - uses: actions/checkout@v4
         with:
@@ -44,7 +44,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version: '1.23'
       - name: Build
         run: go build ./...
       - name: Test

.github/workflows/lint.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version: '1.23'
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version: '1.23'
           check-latest: true
 
       - name: Setup Node.js

Dockerfile

@@ -12,7 +12,7 @@ RUN yarn install --frozen-lockfile --non-interactive
 RUN yarn run build
 
 ### Build backend
-FROM golang:1.21-alpine3.19 as backend
+FROM golang:1.23-alpine3.20 as backend
 RUN apk add --no-cache --virtual .build-deps g++ git make
 WORKDIR /build
 COPY . .
@@ -23,7 +23,7 @@ RUN go build -o inbucket \
   -v ./cmd/inbucket
 
 ### Run in minimal image
-FROM alpine:3.19
+FROM alpine:3.20
 RUN apk --no-cache add tzdata
 WORKDIR /opt/inbucket
 RUN mkdir bin defaults ui