feat(icons-tnt): update to v3.8 and 2.13 (#11977)

Updates update `icons-tnt` package to latest versions (to v3.8 and 2.13)
Fixes: #11746

New icons
```html
	<ui5-icon name="tnt/add-project"></ui5-icon>
	<ui5-icon name="tnt/add-issue"></ui5-icon>
	<ui5-icon name="tnt/service-estimator"></ui5-icon>
	<ui5-icon name="tnt/ai-feature-estimator"></ui5-icon>
	<ui5-icon name="tnt/refine-test-data"></ui5-icon>
	<ui5-icon name="tnt/navigate-source-code"></ui5-icon>
	<ui5-icon name="tnt/clean-up"></ui5-icon>
	<ui5-icon name="tnt/sap-fiori-tools"></ui5-icon>
```

Author: ilhan007