Merge remote-tracking branch 'origin/ctest-physim-sanitizers' into integration_2026_w17 (!4069)

ctest: fix tests when compiling with sanitizers, ignore build directories,
fix spsc_q build

- Fix the directory to the current build directory to enable running with
  sanitizers with ctest
- add build* to .gitignore to close #1074
- fix spsc_q compilation on non-C++23 compilers to close #1073

common/utils/ds/spsc_q.h

@@ -7,11 +7,13 @@
 
 #include <stdint.h>
 #include <stdbool.h>
-#include <stdatomic.h>
 
 #if defined(__cplusplus)
+#include <atomic>
 // use atomic_size_t to help interworking with C++
 using std::atomic_size_t;
+#else
+#include <stdatomic.h>
 #endif
 
 typedef struct spsc_q {