Update ci.yml

Author: pjfanning

.github/workflows/ci.yml

@@ -73,7 +73,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.7]
+        scala: [2.13.8]
         java: [zulu@8]
     runs-on: ${{ matrix.os }}
     steps: