fix: Write SSH keys to files before Terraform plan/apply

.gitea/workflows/destroy.yml

@@ -42,14 +42,19 @@ jobs:
             -backend-config="secret_key=${{ secrets.S3_SECRET_KEY }}" \
             -backend-config="skip_requesting_account_id=true"
 
+      - name: Setup SSH Keys
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+          echo "${{ secrets.SSH_PUBLIC_KEY }}" > ~/.ssh/id_ed25519.pub
+          chmod 644 ~/.ssh/id_ed25519.pub
+
       - name: Terraform Destroy
         working-directory: terraform
         run: |
           terraform destroy \
             -var="hcloud_token=${{ secrets.HCLOUD_TOKEN }}" \
-            -var="ssh_public_key=${{ secrets.SSH_PUBLIC_KEY }}" \
-            -var="ssh_private_key=${{ secrets.SSH_PRIVATE_KEY }}" \
-            -var="s3_access_key=${{ secrets.S3_ACCESS_KEY }}" \
-            -var="s3_secret_key=${{ secrets.S3_SECRET_KEY }}" \
-            -var="s3_endpoint=${{ secrets.S3_ENDPOINT }}" \
+            -var="ssh_public_key=$HOME/.ssh/id_ed25519.pub" \
+            -var="ssh_private_key=$HOME/.ssh/id_ed25519" \
             -auto-approve