build(toolchain): bump go from 1.25 to 1.26

Author: wikkyk

.golangci-kal.yml

@@ -1,6 +1,6 @@
 version: "2"
 run:
-  go: "1.25"
+  go: "1.26"
   allow-parallel-runners: true
 linters:
   default: none

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.25 AS builder
+FROM golang:1.26 AS builder
 ARG TARGETOS
 ARG TARGETARCH
 

docs/Development.md

@@ -33,7 +33,7 @@ The following dependencies are required to setup a development environment:
 
 - git
 - make
-- Go v1.23
+- Go v1.26
 - Kubebuilder (only required for making new controllers)
 - Docker (required for Kind)
 - Tilt

go.mod

@@ -1,6 +1,6 @@
 module github.com/ionos-cloud/cluster-api-provider-proxmox
 
-go 1.25.0
+go 1.26.0
 
 replace (
 	github.com/golangci/golangci-lint/v2 => github.com/golangci/golangci-lint/v2 v2.9.0