fix: resolve YAML parsing error in CI configuration

Problem:
- YAML parser incorrectly interpreted  as map structure
- Caused 'cannot unmarshal' error in pipeline #72

Solution:
- Wrap echo commands with single quotes to prevent YAML parsing issues
- Ensure proper command execution in CI environment

.woodpecker.yml

@@ -132,8 +132,8 @@ steps:
       - ls -la dist/
       - echo "Deploying to production"
       - mkdir -p ~/.ssh
-      - echo "SSH key length: $(echo $SSH_PRIVATE_KEY | wc -c)"
-      - echo "First 50 chars of SSH key: $(echo $SSH_PRIVATE_KEY | cut -c1-50)"
+      - 'echo "SSH key length: $(echo $SSH_PRIVATE_KEY | wc -c)"'
+      - 'echo "First 50 chars of SSH key: $(echo $SSH_PRIVATE_KEY | cut -c1-50)"'
       - echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_rsa
       - chmod 600 ~/.ssh/id_rsa
       - echo "SSH key file created, checking permissions:"