[openui5] install ui5/distribution

[jmcarcell]

This Pull request:

Changes or fixes:

Since #23179, openui5 is downloaded with ExternalProject_Add into ${CMAKE_BINARY_DIR}/ui5/distribution, and the install rule for that directory was removed, although the PR description says it "is installed in ui5/distribution/ directory".

The only remaining rule is install(DIRECTORY ui5/ ...) in the top-level CMakeLists.txt. Since it uses a relative path, CMake resolves it against the source directory, so it only installs ROOT's own ui5 sources (browser, canv, eve7, ...). For an out-of-source build with -Dbuiltin_openui5=ON, <prefix>/ui5/distribution is therefore missing after installation and the browser falls back to https://openui5.hana.ondemand.com/1.152.0/. Webgui then does not work without network access, even though builtin_openui5=ON is now required with webgui=ON (#23691).

This PR restores the install rule for ui5/distribution.

Checklist:

• tested changes locally
• updated the docs (if necessary)

Tested on AlmaLinux 9 with an out-of-source build of master and -Dbuiltin_openui5=ON: without this change cmake --install produces no ui5/distribution, with it ui5/distribution/resources/sap-ui-core.js is installed.

[dpiparo]

thanks.

[github-actions]

Test Results

    23 files      23 suites   3d 20h 31m 50s ⏱️
 3 888 tests  3 885 ✅ 0 💤 3 ❌
79 711 runs  79 706 ✅ 0 💤 5 ❌

For more details on these failures, see this check.

Results for commit 1dc95eb.