Automatic merge from submit-queue (batch tested with PRs 47921, 45984, 46829, 46896, 46923)

Create output_dir if doesn't exist

**What this PR does / why we need it**:
Minor fix to the swagger spec gen, that if the directory doesn't exist, create it before copying.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```