[Volunteer] Auto milestone github ci

[Aias00]

Volunteer help

add auto milestone github ci, auto tag milestone info to prs when pr opens

[yuluo-yx]

/assign

[Aias00]

/assign

oh, looks like this function is not exists

[yuluo-yx]

hi @Aias00

Should all the PRs made during the version period be added to the milestone? I think this is not very good. There might be some PRs that are not related to the milestones, such as modifications to the infrastructure.

I think it might be better to manage manually.