Rollup merge of #62535 - alexcrichton:ci-job-name, r=pietroalbini
Rollup merge of #62535 - alexcrichton:ci-job-name, r=pietroalbini

ci: Configure $CI_JOB_NAME correctly

Looks like some env vars were tweaked on Azure's side of things, so
update how we configure `CI_JOB_NAME`.

graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust