Disable false positive shellcheck errors for these jq inputs.

.github/workflows/slack-notifications.yml

@@ -159,6 +159,7 @@ jobs:
             --arg ref_name "${CURRENT_BRANCH}" \
             --arg run_url "https://github.com/WordPress/wordpress-develop/actions/runs/${GITHUB_RUN_ID}/attempts/${GITHUB_RUN_ATTEMPT}" \
             --arg commit_message "${COMMIT_MSG}" \
+            # shellcheck disable=SC2016,SC2086
             '{workflow_name: $workflow_name, ref_name: $ref_name, run_url: $run_url, commit_message: $commit_message}'
           )" >> $GITHUB_OUTPUT
         env: