[DAPHNE-#830] Silence warning when using LLD

With this new CMake configuration, we silence a lot of warnings when using the LLD linker in combination with clang:
``clang++: warning: argument unused during compilation: '-fuse-ld=lld' [-Wunused-command-line-argument]``

A CMake version bump to 3.29 is necessary for this config option. Ubuntu 24 users need to switch to the snap version of CMake. The Docker images already provide CMake 3.30

CMakeLists.txt

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.25.2)
+cmake_minimum_required(VERSION 3.29)
 
 # Build release version by default (override with -DCMAKE_BUILD_TYPE=Debug in your initial cmake invocation)
 # This needs to be set *before* the project() command
@@ -152,9 +152,8 @@ endif()
 
 find_program(LLD_PROGRAM lld)
 if(LLD_PROGRAM)
-    message(STATUS "Using lld")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fuse-ld=lld")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-ld=lld")
+    set(CMAKE_LINKER_TYPE LLD)
+    message(STATUS "Using lld - LINKER_TYPE: ${CMAKE_LINKER_TYPE}")
 endif()
 
 find_package(Arrow REQUIRED)