chore: bump runners (#65)

- macos-12 is not supported anymore
(actions/runner-images#10721)
- ubuntu-24.04 is now the latest version

Author: xballoy

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         go-version: [ '1.17', '1.18', '1.19', '1.20', '1.21', '1.22', '1.23']
-        os: [ ubuntu-22.04, macos-12, windows-2022 ]
+        os: [ ubuntu-24.04, macos-14, windows-2022 ]
 
     runs-on: ${{ matrix.os }}