tools: Upgrade go

Upgrade go to 1.23.6 to fix vulnerability only listed on linux.

	Vulnerability #1: GO-2025-3447
	    Timing sidechannel for P-256 on ppc64le in crypto/internal/nistec
	  More info: https://pkg.go.dev/vuln/GO-2025-3447
	  Standard library
	    Found in: crypto/internal/nistec@go1.23.5
	    Fixed in: crypto/internal/nistec@go1.23.6
	    Platforms: ppc64le
	    Example traces found:
	      #1: pkg/cli/runtime.go:89:21: cli.Platform.Cls calls exec.Command, which eventually calls nistec.P256Point.SetBytes

We are not doing a full upgrade because the last one was just merged and I can't
upgrade on mac without first fixing the rounding issue (chicken-egg).

Author: juliaogris

bin/.go-1.23.5.pkg bin/.go-1.23.6.pkgbin/.go-1.23.5.pkg renamed to bin/.go-1.23.6.pkg

@@ -1 +1 @@
-.go-1.23.5.pkg
+.go-1.23.6.pkg

bin/go

@@ -1 +1 @@
-.go-1.23.5.pkg
+.go-1.23.6.pkg