ci: make go 1.25 the min required version

some of the dependencies (e.g. lipgloss) require 1.25 and that's what we specified in go.mod but hadn't updated the CI and nix flake.

.github/workflows/go.yml

@@ -5,30 +5,31 @@ on:
   pull_request:
     branches: ["main"]
 jobs:
-  test:
-    strategy:
-      matrix:
-        platform: [ubuntu-latest, macos-latest]
-    runs-on: ${{ matrix.platform }}
-    steps:
-      - uses: actions/checkout@v4
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: '1.24'
-      - name: Test
-        run: go test -v ./...
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
-          go-version: '1.24'
+          go-version: '1.25.0'
       - name: Check if `go fmt` and `go mod tidy` make any changes
         run: |
           set -x
           go fmt ./...
           go mod tidy
           git diff --exit-code
+  test:
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.platform }}
+    needs: lint
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: '1.25.0'
+      - name: Test
+        run: go test -v ./...

.github/workflows/release.yml

@@ -20,11 +20,11 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
-          go-version: "1.24"
+          go-version: "1.25.0"
       - name: Get release version
         id: get_version
         run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT

nix/package.nix

@@ -1,10 +1,10 @@
 {
   lib,
-  buildGoModule,
+  buildGo125Module,
   version ? "dev",
 }:
 
-buildGoModule {
+buildGo125Module {
   inherit version;
   pname = "jjui";
 

nix/shells.nix

@@ -6,7 +6,7 @@
         name = "jjui-dev";
         buildInputs = with pkgs; [
           # Go toolchain
-          go
+          go_1_25
           gotools
 
           jujutsu