CI: set a max timeout of 60 minutes (#2634)

Author: DilumAluthge

.github/workflows/test.yml

@@ -15,6 +15,7 @@ defaults:
 jobs:
   test:
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
     strategy:
       fail-fast: false
       matrix:
@@ -62,6 +63,7 @@ jobs:
           file: lcov.info
   docs:
     runs-on: ubuntu-latest
+    timeout-minutes: 60
     steps:
       - uses: actions/[email protected]
       - uses: julia-actions/setup-julia@latest