Fix wrong method existence check in `TracingDriverConnection::errorCode()`#568

Jean85 merged 1 commit intomastergetsentry/sentry-symfony:masterfrom

fix/wrong-method-existence-check-for-error-code-method-on-tracing-connectiongetsentry/sentry-symfony:fix/wrong-method-existence-check-for-error-code-method-on-tracing-connectionCopy head branch name to clipboard