Improve CI workflow: no fast fail, short timeout

Author: dentarg

.github/workflows/main.yml

@@ -12,8 +12,10 @@ permissions:
 jobs:
   build:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     name: Ruby ${{ matrix.ruby }}
     strategy:
+      fail-fast: false
       matrix:
         ruby:
           - 3.3