Continue all remaining jobs in make check if one fails

Given that our checks are rather lightweight, it's useful to avoid cancelling other jobs in the matrix if one fails. This way we can recognize if an issue is platform-specific or is intermittent.

Author: knopers8

.github/workflows/control.yml

@@ -11,6 +11,7 @@ jobs:
     name: Basic Make Check
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         os: [macOS-latest, ubuntu-24.04]
         go: [ '1.24.2' ]