ci: re-enable NetBSD job (#729)

Author: newpavlov

.github/workflows/tests.yml

@@ -254,9 +254,6 @@ jobs:
   netbsd:
     name: NetBSD VM
     runs-on: ubuntu-24.04
-    # The job is currently broken:
-    # https://github.com/rust-random/getrandom/actions/runs/17557903310/job/49871767957
-    if: false
     steps:
       - uses: actions/checkout@v5
       - name: Test in NetBSD