Update bundled gtest to 1.11.0 to avoid fatal maybe-uninitialized error with GCC 11

[The-Compiler]

Running make simulator-test locally on Archlinux (GCC 11.1.0) fails with:

In file included from ../../googletest/src/gtest-all.cc:42:
../../googletest/src/gtest-death-test.cc: In function ‘bool testing::internal::StackGrowsDown()’:
../../googletest/src/gtest-death-test.cc:1301:24: error: ‘dummy’ may be used uninitialized [-Werror=maybe-uninitialized]
 1301 |   StackLowerThanAddress(&dummy, &result);
      |   ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
../../googletest/src/gtest-death-test.cc:1290:13: note: by argument 1 of type ‘const void*’ to ‘void testing::internal::StackLowerThanAddress(const void*, bool*)’ declared here
 1290 | static void StackLowerThanAddress(const void* ptr, bool* result) {
      |             ^~~~~~~~~~~~~~~~~~~~~
../../googletest/src/gtest-death-test.cc:1299:7: note: ‘dummy’ declared here
 1299 |   int dummy;
      |       ^~~~~
cc1plus: all warnings being treated as errors

It looks like this was reported in and fixed for gtest 1.11.0:

• Compile error in 1.10.0 while using GCC 11 google/googletest#3219
• Fix warning maybe-uninitialized google/googletest#3024