ci: bump Go 1.24 → 1.25 in CI matrix, .go-version, and flake devShell

Author: devnullvoid

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: ['1.24']
+        go-version: ['1.25']
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
@@ -43,7 +43,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: ['1.24']
+        go-version: ['1.25']
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
@@ -73,7 +73,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        go-version: ['1.24']
+        go-version: ['1.25']
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v6

.go-version

@@ -1 +1 @@
-1.24.5
+1.25

flake.nix

@@ -49,7 +49,7 @@
 
         devShells.default = pkgs.mkShell {
           buildInputs = with pkgs; [
-            go_1_24
+            go_1_25
             gopls
             gotools
             golangci-lint