update macos runner

[emmyoop]

Description

macos-12 runner will be fully deprecated 12/3. Remove it before that happens.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have signed the CLA
• I have run this code in development and it appears to resolve the stated issue
• I have opened an issue to add/update docs, or docs changes are not required/relevant for this PR
• I have run changie new to create a changelog entry

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.48%. Comparing base (65d7ba5) to head (48d5a73).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #215   +/-   ##
=======================================
  Coverage   68.48%   68.48%           
=======================================
  Files          52       52           
  Lines        3389     3389           
=======================================
  Hits         2321     2321           
  Misses       1068     1068           

Flag	Coverage Δ
unit	68.48% <ø> (ø)

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[emmyoop]

This is blocked on dbt-labs/dbt-core#10974

[aranke]

LGTM!