Support OpenAPI client generation with Angular 20

[LHBruneton-C2C]

Description

This PR introduces [...]

Architectural changes

The following library now depends on [...]

Screenshots

[...]

Quality Assurance Checklist

• Commit history is devoid of any merge commits and readable to facilitate reviews
• If new logic ⚙️ is introduced: unit tests were added
• If new user stories 🤏 are introduced: E2E tests were added
• If new UI components 🕹️ are introduced: corresponding stories in Storybook were created
• If breaking changes 🪚 are introduced: add the breaking change label
• If bugs 🐞 are fixed: add the backport <release branch> label
• The documentation website 📚 has received the love it deserves

How to test

Follow these instructions to confirm [...]

---

[github-actions]

Affected libs:
api-repository,feature-catalog,feature-record,feature-router,feature-search,feature-map,data-access-gn4,api-metadata-converter,ui-search,feature-editor,database-dump,feature-notifications,util-data-fetcher,feature-dataviz,ui-dataviz,common-fixtures,ui-elements,ui-catalog,util-shared,ui-widgets,ui-inputs,ui-layout,ui-map,util-app-config,common-domain,util-i18n

Affected apps:
metadata-editor,webcomponents,datahub,search,demo,map-viewer,metadata-converter,data-platform

• 🚀 Build and deploy storybook and demo on GitHub Pages
• 📦 Build and push affected docker images

[github-actions]

📷 Screenshots for webcomponents are here!

[github-actions]

📷 Screenshots are here!