Golang build: adopt Go 1.24 as bootstrap toolchain for Go 1.26

This is the tracking issue for the Go 1.26 iteration of proposal #54265.

Comment From: gabyhelp

Related Issues and Documentation

• build: adopt Go 1.22 as bootstrap toolchain for Go 1.24 #64751

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Comment From: gopherbot

This issue is currently labeled as early-in-cycle for Go 1.26. That time is now, so a friendly reminder to look at it again.