chore(deps): bump go to v1.26.6 (#550)

Update the Go toolchain requirement from 1.26.5 to 1.26.6.

Signed-off-by: Ryan Johnson <ryan.johnson@broadcom.com>

Author: tenthirtyam

README.md

@@ -50,7 +50,7 @@ This plugin supports the following desktop hypervisors.
 
 **Go**:
 
-- [Go 1.26.5][golang-install] is required to build the plugin from source.
+- [Go 1.26.6][golang-install] is required to build the plugin from source.
 
 ## Installation
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/vmware/packer-plugin-vmware
 
-go 1.26.5
+go 1.26.6
 
 require (
 	github.com/google/go-cmp v0.7.0