Specified dependencies by default

[ivannalisetska]

I added the sentence "By default, all steps depend on the step that uploads them, and they will not run until that one is finished" to clarify the default behaviour of synchronous execution, ensuring that users understand that steps are dependent on the completion of the preceding one and may need to adjust the async attribute accordingly for parallel processing in Buildkite. This aims to prevent confusion and provide a clear understanding of the execution flow.

[buildkite-docs-bot]

Preview URL: https://2708--bk-docs-preview.netlify.app