Memleak Demo PR

[Alex2772]

This PR demonstrates how "Code Quality" pipelines behave when introducing obvious software engineering mistakes such as memleaks.

These pipelines help to keep your codebase nice and clean.

[Alex2772]

==4617== 
==4617== HEAP SUMMARY:
==4617==     in use at exit: 1[23](https://github.com/aui-framework/example_app/actions/runs/13615770487/job/38058603343?pr=3#step:7:24),901 bytes in 265 blocks
==4617==   total heap usage: 914 allocs, 649 frees, 204,101 bytes allocated
==4617== 
==4617== 4 bytes in 1 blocks are definitely lost in loss record 2 of [24](https://github.com/aui-framework/example_app/actions/runs/13615770487/job/38058603343?pr=3#step:7:25)4
==4617==    at 0x4846FA3: operator new(unsigned long) (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==4617==    by 0x781173: MainWindow::sum(int, int) (MainWindow.cpp:48)
==4617==    by 0x77EE2D: SumTest_Case1_Test::TestBody() (SumTest.cpp:5)
==4617==    by 0x81F1F2: void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (gtest.cc:[26](https://github.com/aui-framework/example_app/actions/runs/13615770487/job/38058603343?pr=3#step:7:27)12)
==4617==    by 0x8172B8: void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (gtest.cc:2648)
==4617==    by 0x7EF6A1: testing::Test::Run() (gtest.cc:2687)
==4617==    by 0x7F0[27](https://github.com/aui-framework/example_app/actions/runs/13615770487/job/38058603343?pr=3#step:7:28)2: testing::TestInfo::Run() (gtest.cc:2836)
==4617==    by 0x7F0CEB: testing::TestSuite::Run() (gtest.cc:3015)
==4617==    by 0x801E6F: testing::internal::UnitTestImpl::RunAllTests() (gtest.cc:5920)
==4617==    by 0x820469: bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) (gtest.cc:2612)
==4617==    by 0x8186EA: bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) (gtest.cc:2648)
==4617==    by 0x8002A2: testing::UnitTest::Run() (gtest.cc:5484)
==4617== 
{
   <insert_a_suppression_name_here>
   Memcheck:Leak
   match-leak-kinds: definite
   fun:_Znwm
   fun:_ZN10MainWindow3sumEii
   fun:_ZN18SumTest_Case1_Test8TestBodyEv
   fun:_ZN7testing8internal38HandleSehExceptionsInMethodIfSupportedINS_4TestEvEET0_PT_MS4_FS3_vEPKc
   fun:_ZN7testing8internal[35](https://github.com/aui-framework/example_app/actions/runs/13615770487/job/38058603343?pr=3#step:7:36)HandleExceptionsInMethodIfSupportedINS_4TestEvEET0_PT_MS4_FS3_vEPKc
   fun:_ZN7testing4Test3RunEv
   fun:_ZN7testing8TestInfo3RunEv
   fun:_ZN7testing9TestSuite3RunEv
   fun:_ZN7testing8internal12UnitTestImpl11RunAllTestsEv
   fun:_ZN7testing8internal38HandleSehExceptionsInMethodIfSupportedINS0_12UnitTestImplEbEET0_PT_MS4_FS3_vEPKc
   fun:_ZN7testing8internal35HandleExceptionsInMethodIfSupportedINS0_12UnitTestImplEbEET0_PT_MS4_FS3_vEPKc
   fun:_ZN7testing8UnitTest3RunEv
}