x/playground: update to Go 1.25

[bigwhite]

It’s been two weeks since Go 1.25 was released, but the list of supported versions for the Go playground still hasn’t been updated, with no Go 1.25.0 version listed.

[cherrymui]

cc @findleyr

[bigwhite]

My small suggestion: go team can put the updated version list of go playground into the milestone as a release-blocker issue, just like the release-blocker issue of writing release notes.

[gopherbot]

Change https://go.dev/cl/699916 mentions this issue: all: update Go and Debian versions in Dockerfile files

[dmitshur]

Thanks for reporting this. The playground has automated deployment (https://go.googlesource.com/playground#deployment), so it should've made Go 1.25.0 available on the same day as it was released. It didn't work this time due to the automated deployment breaking. Under normal circumstances, there's nothing here that needs to block the release. There's room to improve how the Debian version used in the deploy is maintained for the future, but the immediate issue is resolved.

[gopherbot]

Change https://go.dev/cl/699935 mentions this issue: sandbox: update add-apt-repository to debian trixie