CI: avoid cancelling all jobs when one fails

If a job in a matrix fails we don't want to cancel all jobs, thus we
need to set `fail-fast: false` as a strategy property.

Signed-off-by: Iker Pedrosa <[email protected]>

Author: ikerexxe

.github/workflows/runner.yml

@@ -69,6 +69,7 @@ jobs:
   container-build:
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
         os: [alpine, debian, fedora]