HOUSTON — As Michigan nears its final game of the season, the question remains — will this be head coach Jim Harbaugh’s last game coaching Michigan? As is typical this time of year, Harbaugh is the subject of NFL coaching rumors. In 2022, he flew to Minneapolis for an interview with the Vikings but was not offered the job, and early last year was in talks with the Denver Broncos. Harbaugh, 60, and in his ninth season coaching his alma mater, has not yet signed an extension with Michigan — his current contract takes him through 2026 — so the questions about his future remain. He sidestepped the…