ci: add --security-opt seccomp=unconfined docker option

With zig-test workflow.
It seems docker blocks io_uring by default using seccomp.

see tigerbeetle/tigerbeetle#1995 and
moby/moby#46762

.github/workflows/zig-test.yml

@@ -100,13 +100,13 @@ jobs:
     # Don't run the CI with draft PR.
     if: github.event.pull_request.draft == false
 
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-latest
     container:
       image: ghcr.io/lightpanda-io/zig-v8:0.12.0-dev.1773-8a8fd47d2
       credentials:
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
-
+      options: "--security-opt seccomp=unconfined"
     steps:
       - uses: actions/checkout@v3
         with: