[dep] Upgrade Go to 1.26.1 (#544)

* [test] Upgrade Go to 1.26.1

* [test] Use auto Go toolchain in Devbox

Author: komer3

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine AS builder
+FROM golang:1.26-alpine AS builder
 RUN mkdir -p /linode
 WORKDIR /linode
 

cloud/linode/loadbalancers_test.go

@@ -3899,8 +3899,8 @@ func Test_getPortConfig(t *testing.T) {
 
 			if !reflect.DeepEqual(portConfigResult, test.expectedPortConfig) {
 				t.Error("unexpected port config")
-				t.Logf("expected: %q", test.expectedPortConfig)
-				t.Logf("actual: %q", portConfigResult)
+				t.Logf("expected: %#v", test.expectedPortConfig)
+				t.Logf("actual: %#v", portConfigResult)
 			}
 
 			if !reflect.DeepEqual(err, test.err) {

devbox.json

@@ -4,7 +4,7 @@
     "clusterctl@latest",
     "[email protected]",
     "envsubst@latest",
-    "go@1.25.1",
+    "go@1.26.0",
     "[email protected]",
     "jq@latest",
     "kind@latest",
@@ -27,6 +27,7 @@
     }
   },
   "env": {
-    "EXP_CLUSTER_RESOURCE_SET": "true"
+    "EXP_CLUSTER_RESOURCE_SET": "true",
+    "GOTOOLCHAIN": "auto"
   }
 }

devbox.lock

@@ -194,53 +194,54 @@
       }
     },
     "github:NixOS/nixpkgs/nixpkgs-unstable": {
-      "resolved": "github:NixOS/nixpkgs/e0042dedfbc9134ef973f64e5c7f56a38cc5cc97?lastModified=1748344075&narHash=sha256-PsZAY3H0e%2FPBoDVn4fLwGEmeSwESj7SZPZ6CMfgbWFU%3D"
+      "last_modified": "2026-03-10T02:35:18Z",
+      "resolved": "github:NixOS/nixpkgs/e607cb5360ff1234862ac9f8839522becb853bb9?lastModified=1773110118&narHash=sha256-mPAG8phMbCReKSiKAijjjd3v7uVcJOQ75gSjGJjt%2FRk%3D"
     },
-    "go@1.25.1": {
-      "last_modified": "2025-10-07T08:41:47Z",
-      "resolved": "github:NixOS/nixpkgs/bce5fe2bb998488d8e7e7856315f90496723793c#go",
+    "go@1.26.0": {
+      "last_modified": "2026-02-23T15:40:43Z",
+      "resolved": "github:NixOS/nixpkgs/80d901ec0377e19ac3f7bb8c035201e2e098cc97#go_1_26",
       "source": "devbox-search",
-      "version": "1.25.1",
+      "version": "1.26.0",
       "systems": {
         "aarch64-darwin": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/mkdfnr1nkfj2kznxyag9pypbxp3wqqdv-go-1.25.1",
+              "path": "/nix/store/5ajixjk279m40yf6x96xxlnvw1wg6hq3-go-1.26.0",
               "default": true
             }
           ],
-          "store_path": "/nix/store/mkdfnr1nkfj2kznxyag9pypbxp3wqqdv-go-1.25.1"
+          "store_path": "/nix/store/5ajixjk279m40yf6x96xxlnvw1wg6hq3-go-1.26.0"
         },
         "aarch64-linux": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/0jzj8p7k9wkr4l17sgrlg3z5di27sggf-go-1.25.1",
+              "path": "/nix/store/b0ncnyjis5pfzm86pb0y3klgdw2gwyww-go-1.26.0",
               "default": true
             }
           ],
-          "store_path": "/nix/store/0jzj8p7k9wkr4l17sgrlg3z5di27sggf-go-1.25.1"
+          "store_path": "/nix/store/b0ncnyjis5pfzm86pb0y3klgdw2gwyww-go-1.26.0"
         },
         "x86_64-darwin": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/q2xylk8h3kbfajhw2lpdmyzyyqgqx8fl-go-1.25.1",
+              "path": "/nix/store/kpr6dqdjixi0b1wh7phisqmzkxjw7ln7-go-1.26.0",
               "default": true
             }
           ],
-          "store_path": "/nix/store/q2xylk8h3kbfajhw2lpdmyzyyqgqx8fl-go-1.25.1"
+          "store_path": "/nix/store/kpr6dqdjixi0b1wh7phisqmzkxjw7ln7-go-1.26.0"
         },
         "x86_64-linux": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/f01qkydd3c2jqwi4w6hkddkf3blp16kw-go-1.25.1",
+              "path": "/nix/store/s9dwyyi8mk76wslsm6jl50ky9hd11pv3-go-1.26.0",
               "default": true
             }
           ],
-          "store_path": "/nix/store/f01qkydd3c2jqwi4w6hkddkf3blp16kw-go-1.25.1"
+          "store_path": "/nix/store/s9dwyyi8mk76wslsm6jl50ky9hd11pv3-go-1.26.0"
         }
       }
     },

go.mod

@@ -1,8 +1,6 @@
 module github.com/linode/linode-cloud-controller-manager
 
-go 1.25.0
-
-toolchain go1.25.5
+go 1.26.1
 
 require (
 	github.com/appscode/go v0.0.0-20201105063637-5613f3b8169f