cmd/vendor: update to x/tools@68724af

This causes the go1.26 vet printf analyzer to deduce printf
wrappers via interface methods (#76368).

For #76368

Change-Id: I80e6d3b21bdffb5d925a162af7c4b21b1357bb89
Reviewed-on: https://go-review.googlesource.com/c/go/+/722540
Auto-Submit: Alan Donovan <[email protected]>
Commit-Queue: Alan Donovan <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>

Author: adonovan

src/cmd/go.mod

@@ -11,7 +11,7 @@ require (
 	golang.org/x/sys v0.38.0
 	golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54
 	golang.org/x/term v0.34.0
-	golang.org/x/tools v0.39.1-0.20251114194111-59ff18ce4883
+	golang.org/x/tools v0.39.1-0.20251120214200-68724afed209
 )
 
 require (

src/cmd/go.sum

@@ -22,7 +22,7 @@ golang.org/x/term v0.34.0 h1:O/2T7POpk0ZZ7MAzMeWFSg6S5IpWd/RXDlM9hgM3DR4=
 golang.org/x/term v0.34.0/go.mod h1:5jC53AEywhIVebHgPVeg0mj8OD3VO9OzclacVrqpaAw=
 golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
 golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
-golang.org/x/tools v0.39.1-0.20251114194111-59ff18ce4883 h1:aeO0AW8d+a+5+hNQx9f4J5egD89zftrY2x42KGQjLzI=
-golang.org/x/tools v0.39.1-0.20251114194111-59ff18ce4883/go.mod h1:JnefbkDPyD8UU2kI5fuf8ZX4/yUeh9W877ZeBONxUqQ=
+golang.org/x/tools v0.39.1-0.20251120214200-68724afed209 h1:BGuEUnbWU1H+VhF4Z52lwCvzRT8Q/Z7kJC3okSME58w=
+golang.org/x/tools v0.39.1-0.20251120214200-68724afed209/go.mod h1:JnefbkDPyD8UU2kI5fuf8ZX4/yUeh9W877ZeBONxUqQ=
 rsc.io/markdown v0.0.0-20240306144322-0bf8f97ee8ef h1:mqLYrXCXYEZOop9/Dbo6RPX11539nwiCNBb1icVPmw8=
 rsc.io/markdown v0.0.0-20240306144322-0bf8f97ee8ef/go.mod h1:8xcPgWmwlZONN1D9bjxtHEjrUtSEa3fakVF8iaewYKQ=