Update googletest to fix gcc error

Described here: google/googletest#3219

/home/elsid/dev/ozo/build/pg/gcc_debug/tests/GoogleTest-prefix/src/GoogleTest/googletest/src/gtest-death-test.cc: In function ‘bool testing::internal::StackGrowsDown()’:
/home/elsid/dev/ozo/build/pg/gcc_debug/tests/GoogleTest-prefix/src/GoogleTest/googletest/src/gtest-death-test.cc:1301:24: error: ‘dummy’ may be used uninitialized [-Werror=maybe-uninitialized]
 1301 |   StackLowerThanAddress(&dummy, &result);
      |   ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
/home/elsid/dev/ozo/build/pg/gcc_debug/tests/GoogleTest-prefix/src/GoogleTest/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) {
      |             ^~~~~~~~~~~~~~~~~~~~~
/home/elsid/dev/ozo/build/pg/gcc_debug/tests/GoogleTest-prefix/src/GoogleTest/googletest/src/gtest-death-test.cc:1299:7: note: ‘dummy’ declared here
 1299 |   int dummy;
      |       ^~~~~

tests/CMakeLists.txt

@@ -4,7 +4,7 @@ include(ExternalProject)
 ExternalProject_Add(
     GoogleTest
     GIT_REPOSITORY "https://github.com/google/googletest.git"
-    GIT_TAG release-1.10.0
+    GIT_TAG aa533abfd4232b01f9e57041d70114d5a77e6de0
     CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${CMAKE_CURRENT_BINARY_DIR}
     UPDATE_COMMAND ""
     LOG_DOWNLOAD ON