bug: workflow executions -> run from GCP workspace does not respect incremental refresh

**Describe the bug**
When running a workflow executions with the option run from GCP, I get a prompt to select full or incremental refresh. When setting either option, it runs a full refresh. This is stated in the interface, as well as in the actual job.

**To Reproduce**
Workflow executions -> run from GCP workspace does not respect incremental refresh -> Select Option Incremental in prompt.

**Expected behavior**
When selecting the option incremental update, the interface does not show "Full Refresh" and the job is run with the flag incremental.

**Environment:**
- Operating system: MacOS
- Dataform cli version: 3.0.43
- Dataform core version: 3.0.2
- Version of the extension: 1.6.1

Start by tracing the VS Code extension flow for running workflow executions from a GCP workspace, focusing on where the full or incremental refresh prompt is handled. Reproduce issue 306 with the incremental option and verify that the interface and resulting job use the incremental flag rather than showing or running a full refresh.

Written by the indexing model from the issue text.