Update go to 1.26

Dependabot PRs that update golang.org/x modules fail on CI. These
modules now require go 1.26, but CI runs 1.25. The golang.org/x modules
require the oldest Go release that is still supported, and since Go
1.27 came out, this is 1.26.

Stop at 1.26 rather than going to 1.27. The go version in go.mod is the
minimum for everyone who builds lazygit from source, and Go 1.27 is
only two months old. Also, Go 1.27 requires macOS 13, so release
binaries built with it would no longer run on macOS 12.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -1,7 +1,7 @@
 name: Continuous Integration
 
 env:
-  GO_VERSION: 1.25.x
+  GO_VERSION: 1.26.x
 
 on:
   push:

.github/workflows/release.yml

@@ -162,7 +162,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v7
         with:
-          go-version: 1.25.x
+          go-version: 1.26.x
 
       - name: Run goreleaser
         uses: goreleaser/goreleaser-action@f06c13b6b1a9625abc9e6e439d9c05a8f2190e94 # v7.2.3

.golangci.yml

@@ -1,6 +1,6 @@
 version: "2"
 run:
-  go: "1.25"
+  go: "1.26"
 issues:
   max-issues-per-linter: 0
   max-same-issues: 0

Dockerfile

@@ -2,7 +2,7 @@
 # docker build -t lazygit .
 # docker run -it lazygit:latest /bin/sh
 
-FROM golang:1.25 as build
+FROM golang:1.26 as build
 WORKDIR /go/src/github.com/jesseduffield/lazygit/
 COPY go.mod go.sum ./
 RUN go mod download

go.mod

@@ -1,6 +1,6 @@
 module github.com/jesseduffield/lazygit
 
-go 1.25.0
+go 1.26.0
 
 // This is necessary to ignore test files when executing gofumpt.
 ignore ./test