GHA: add rawhide workaround

Author: junghans

.github/workflows/continuous-integration-workflow.yml

@@ -25,7 +25,10 @@ jobs:
             module_build: true
             no_regression_testing: true
     runs-on: ubuntu-latest
-    container: ghcr.io/votca/buildenv/${{ matrix.distro }}
+    container:
+      image: ghcr.io/votca/buildenv/${{ matrix.distro }}
+      # https://bugzilla.redhat.com/show_bug.cgi?id=1900021
+      options: --security-opt seccomp=unconfined
     steps:
       - uses: actions/checkout@v2
         with: