Fix PkgEval

Author: goerz

.github/workflows/PkgEval.yml

@@ -14,14 +14,16 @@ jobs:
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
+      - name: Install XVFB
+        run: sudo apt-get install xvfb
       - uses: julia-actions/cache@v2
       - uses: actions/checkout@v4
         with:
           repository: 'JuliaCI/PkgEval.jl'
       - name: Instantiate PkgEval
         run: julia --project=. -e 'import Pkg; Pkg.instantiate()'
       - name: Run PkgEval
-        shell: julia --project=. {0}
+        shell: xvfb-run --auto-servernum julia --project=. {0}
         run: |
           BRANCH = ENV["GITHUB_REF_NAME"]
           using PkgEval