Update Julia version in format-check

Author: MilesCranmer

.github/workflows/check-format.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: [1.3.0]
+        julia-version: [1.8]
         julia-arch: [x86]
         os: [ubuntu-latest]
     steps: