Install JuliaFormatter

Author: gdalle

.github/workflows/PreCommit.yml

@@ -14,6 +14,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Install Julia
+        uses: julia-actions/setup-julia@v2
+      - name: Install JuliaFormatter
+        run: julia 'using Pkg; Pkg.add("JuliaFormatter")'
       - name: Install uv
         uses: astral-sh/setup-uv@v6
       - name: Install pre-commit