chore(deployment): add ssh key step to cd workflow

Author: DontMash

.github/workflows/cd.yml

@@ -43,11 +43,12 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Add ssh-key
+        run: |
+          ssh-add - <<< ${{ secrets.DEPLOYMENT_SSH_KEY }}
       - name: Create Context
-        env:
-          DEPLOYMENT_HOST: ${{ secrets.DEPLOYMENT_HOST }}
         run: |
-          docker context create shapez-vortex --docker host=ssh://root@${{ env.DEPLOYMENT_HOST }}
+          docker context create shapez-vortex --docker host=ssh://root@${{ secrets.DEPLOYMENT_HOST }}
           docker context use shapez-vortex
       - name: Deploy
         working-directory: ./resources/deployment