update ci workflow

Author: SystemFw

.github/workflows/ci.yml

@@ -72,7 +72,7 @@ jobs:
         if: matrix.java == 'temurin@8' && matrix.os == 'ubuntu-22.04'
         run: sbt '++ ${{ matrix.scala }}' doc
 
-      - if: matrix.scala == '2.13.8'
+      - if: matrix.scala == '2.13.16'
         run: sbt '++ ${{ matrix.scala }}' docs/mdoc
 
       - name: Make target directories
@@ -218,7 +218,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        scala: [2.13.8]
+        scala: [2.13.16]
         java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps: