[ci] Fix bot comments for new PRs

[driazati]

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This includes a few fixes for the PR commenter bot:

• See https://github.com/apache/tvm/pull/12823#issuecomment-1249785243 for an example, the docs bot and tests bot both needed checks / clarification for when CI events are pending now that they run at times other than when GitHub sends a status event.
• The cc bot was also bypassing the draft == true check which this fixes
• indent lines[1:] for multiline comments
• add a link to the workflow run for easier debugging

[github-actions[bot]]

Thanks for contributing to TVM! Please refer to the contributing guidelines https://tvm.apache.org/docs/contribute/ for useful information and tips. Please request code reviews from Reviewers by @-ing them in a comment.

• cc @gigiblender, @areusch, @Mousius _{See #10317 for details}
• Unable to run tests bot because main failed to pass CI at f9b692765adf19a2bd3e5cf7abab8c1c74714f81.
• Built docs for commit 7be236a2605ed11ed3158f704b1128a580d90cba can be found here.

_{Generated by tvm-bot}

[areusch]

@driazati looks like this one got conflicted

[driazati]

I'm in the process of moving this to tlc-pack/ci so we don't really need this anyways