[rb] allow multiple attempts to CI for Ruby tests

Author: titusfortner

.github/workflows/ci-ruby.yml

@@ -83,6 +83,7 @@ jobs:
       - uses: ./.github/actions/bazel
         with:
           command: test --test_output=all //rb:${{ matrix.target }}
+          attempts: 3
         env:
           DISPLAY: :99
 
@@ -121,6 +122,7 @@ jobs:
       - uses: ./.github/actions/bazel
         with:
           command: test --test_output=all //rb:${{ matrix.target }}
+          attempts: 3
         env:
           DISPLAY: :99