chore(scripts/get_tlabel.sh): use 'CI' and 'IMO' labels for maintaine…

…r merge (#16726)

scripts/get_tlabel.sh

@@ -17,16 +17,16 @@ PR="${1}"
 
 >&2 printf $'Using PR: \'%s\'\n' "${PR}"
 
-tlabels="$(gh api --jq '.labels.[].name' "${PR}" | grep -- '^t-' || printf 'generic\nlabel')"
+tlabels="$(gh api --jq '.labels.[].name' "${PR}" | grep -- '^\(t-\|CI\|IMO\)' || printf 'generic\nlabel')"
 # print to error, since the stdout is captured into `GITHUB_OUTPUT
 >&2 printf 't-labels:\n---\n%s\n---\n' "${tlabels}"
-# if there is exactly 1 `t-xxx` label, use `maintainer merge: t-xxx`
-# if there isn't exactly 1 `t-xxx` label, use `maintainer merge`
+# if there is exactly 1 `t-xxx`, `CI`, or `IMO` label, use `maintainer merge: t-xxx`
+# if there isn't exactly 1 `t-xxx`, `CI`, or `IMO` label, use `maintainer merge`
 if [[ "$(wc -l <<<"${tlabels}")" -ne 1 ]]; then
   topicName="maintainer merge"
 else
   topicName="maintainer merge: ${tlabels}"
 fi
 
->&2 printf $'Post to topic: \'%s\'"\n' "${topicName}"
+>&2 printf $'Post to topic: \'%s\'\n' "${topicName}"
 echo "topic=${topicName}"