ci: fail "build-pr-site" workflow on warning

[tbouffard]

Validate there is no warning in the latest branch of all components. This test the shared "build-pr-site" action as well.

Notes

• depends on #596
• will pass when https://github.com/bonitasoft/bonita-doc/pull/2425 will be merged and all bonita versions will include the fix. Now pass after https://github.com/bonitasoft/bonita-doc/commit/446e58fba859d5f4a7deda76437ac122d270ec0f

[github-actions[bot]]

🎊 PR Preview b7e37d882faf2245f59fdeba20c2706ce88036b2 has been successfully built and deployed to https://bonitasoft-bonita-documentation-site-test-pr-599.surge.sh

:clock1: Build time: 0.014s

_{🤖 By surge-preview}

[github-actions[bot]]

🎊 PR Preview b7e37d882faf2245f59fdeba20c2706ce88036b2 has been successfully built and deployed to https://bonitasoft-bonita-documentation-site-site-pr-599.surge.sh

:clock1: Build time: 0.015s

_{🤖 By surge-preview}

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

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