set julia action version to v2

Author: jbytecode

.github/workflows/main.yml

@@ -21,7 +21,7 @@ jobs:
           - x64
     steps:
       - uses: actions/checkout@v5
-      - uses: julia-actions/setup-julia@v3
+      - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}