fix: update macOS image to latest and simplify colima start command #1095

Job	Run time
run_ci (ubuntu-24.04, 3.11, credentials+lms)	18m 59s
run_ci (ubuntu-24.04, 3.11, analyticsapi+insights+lms)	21m 51s
run_ci (ubuntu-24.04, 3.11, discovery+lms+forum)	22m 57s
run_ci (ubuntu-24.04, 3.11, license-manager+lms)	17m 15s
run_ci (ubuntu-24.04, 3.11, ecommerce+lms)	21m 58s
run_ci (ubuntu-24.04, 3.11, designer+lms)	17m 45s
run_ci (ubuntu-24.04, 3.11, registrar+lms)	17m 58s
run_ci (ubuntu-24.04, 3.11, edx_notes_api+lms)	17m 14s
run_ci (ubuntu-24.04, 3.11, enterprise-subsidy+enterprise-catalog+enterprise-access+lms)	24m 16s
run_ci (ubuntu-24.04, 3.11, xqueue)	1m 52s
run_ci (ubuntu-24.04, 3.11, edx-exams+lms)	17m 19s
	3h 19m 24s

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