ci: bump sclorg/testing-farm-as-github-action from 3 to 4

Bumps [sclorg/testing-farm-as-github-action](https://github.com/sclorg/testing-farm-as-github-action) from 3 to 4.
- [Release notes](https://github.com/sclorg/testing-farm-as-github-action/releases)
- [Commits](sclorg/testing-farm-as-github-action@v3...v4)

---
updated-dependencies:
- dependency-name: sclorg/testing-farm-as-github-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/tft.yml

@@ -154,7 +154,7 @@ jobs:
           targetUrl: ""
 
       - name: Run test in testing farm
-        uses: sclorg/testing-farm-as-github-action@v3
+        uses: sclorg/testing-farm-as-github-action@v4
         if: contains(needs.prepare_vars.outputs.supported_platforms, matrix.platform)
         with:
           git_ref: main