First comment is attached to the latest commit of the course template

[xcorail]

When we are executing the very first check answers action in a course, a welcome comment from the Bot is written:

codeql-learninglab-actions/codeql-learninglab-check/package/src/index.ts

Line 288 in 49fadff

comment += `\n Hey, I am the CodeQL Learning Lab bot :robot:`

But this comment is also attached to the latest commit, and then notify also the author of the course, which is annoying.

It makes sense that this comment is posted on the first issue of the course (it's not atm), but not attached to the commit.
Even better: The course could wait for this comment, to make sure that the workflow is set up, before asking the learner to close the issue and navigate to the next one