fix: Add missing ENDIF for svcTabServer RELEASE_BUILD block

- svcTabServer library is DDS-dependent and should be excluded in release builds
- Missing ENDIF() caused CMake configuration error at line 177

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

qt6-after/qt6-migrated-legatus/Lts/Proxies/TrainingAreaBase/CMakeLists.txt

@@ -214,6 +214,7 @@ IF(BUILD_RTI)
   )
 ENDIF(BUILD_RTI)
 NGL_INSTALL_TARGET(svcTabServer)
+ENDIF() # NOT RELEASE_BUILD
 
 #
 # --- Topic Type Plugin --------------------------------------------------------------