Merge #6560: ci: Disable apparmor user namespace restrictions in GH Guix action

df34f0e ci: Disable apparmor user namespace restrictions in GH Guix action (UdjinM6)

Pull request description:

  ## Issue being fixed or feature implemented
  actions/runner-images#10015

  ## What was done?
  actions/runner-images#10443 (comment)

  ## How Has This Been Tested?
  develop: https://github.com/UdjinM6/dash/actions/runs/13187780750
  this PR: https://github.com/UdjinM6/dash/actions/runs/13187795136

  ## Breaking Changes
  n/a

  ## Checklist:
  - [ ] I have performed a self-review of my own code
  - [ ] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have added or updated relevant unit/integration/functional/e2e tests
  - [ ] I have made corresponding changes to the documentation
  - [ ] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_

ACKs for top commit:
  PastaPastaPasta:
    utACK df34f0e

Tree-SHA512: 9353e5c74e46e829f36db168f425bd1f26e3bd6ca630fe915f5cbe66565517a2794c5c87dfd996d56ec2aad28da4ad0fca9aa088188d53f20e73a2387ed22643

Author: PastaPastaPasta

.github/workflows/guix-build.yml

@@ -72,6 +72,10 @@ jobs:
 
     timeout-minutes: 480
     steps:
+      - name: Disable apparmor user namespace restrictions
+        run: |
+          sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
+
       - name: Checkout
         uses: actions/checkout@v4
         with: