add timeouts

.github/workflows/build.yml

@@ -12,6 +12,7 @@ on:
 jobs:
   release:
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
 
     env:
       is_tag: ${{ startsWith(github.ref, 'refs/tags/v') }}

.github/workflows/pr.yml

@@ -5,6 +5,7 @@ on: [push, pull_request]
 jobs:
   test:
     runs-on: ubuntu-latest
+    timeout-minutes: 60
 
     steps:
       - uses: actions/checkout@v2