cicd: Fix failure when .ssh exists

.forgejo/workflows/deploy_staging.yml

@@ -35,7 +35,7 @@ jobs:
 
       - name: Populate relevant files
         run: |
-          mkdir ~/.ssh
+          mkdir -p ~/.ssh
           echo "${{ secrets.C3LF_SSH_TESTING }}" > ~/.ssh/id_ed25519
           chmod 0600 ~/.ssh/id_ed25519
           ls -lah ~/.ssh
@@ -43,7 +43,7 @@ jobs:
           eval $(ssh-agent -s)
           ssh-add ~/.ssh/id_ed25519
           echo "andromeda.lab.or.it ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDXPoO0PE+B9PYwbGaLo98zhbmjAkp6eBtVeZe43v/+T" >> ~/.ssh/known_hosts
-          mkdir /etc/ansible
+          mkdir -p /etc/ansible
           echo "${{ secrets.C3LF_INVENTORY_TESTING }}" > /etc/ansible/hosts
 
       - name: Check ansible version