build: bump MADNESS pin to pick up future.h C++20 deprecation suppression

m-a-d-n-e-s-s/madness@f7aa1401e silences the
std::atomic_exchange(shared_ptr<T>*, ...) deprecation that breaks
gcc/libstdc++ builds with TA_WERROR=ON (MADNESS_WERROR=ON).

Author: evaleev

external/versions.cmake

@@ -12,8 +12,8 @@ set(TA_INSTALL_EIGEN_URL_HASH SHA256=b4c198460eba6f28d34894e3a5710998818515104d6
 set(TA_INSTALL_EIGEN_PREVIOUS_URL_HASH MD5=b9e98a200d2455f06db9c661c5610496)
 
 set(TA_TRACKED_MADNESS_URL https://github.com/m-a-d-n-e-s-s/madness.git CACHE STRING "GIT_REPOSITORY for cloning MADNESS source")
-set(TA_TRACKED_MADNESS_TAG 7d8aaf9d51981e4accf4d84742270d1473f8ca2e CACHE STRING "GIT_TAG (branch or hash) for cloning MADNESS")
-set(TA_TRACKED_MADNESS_PREVIOUS_TAG dd8f5daa4fb40693ca1ef728b8a4e93f31d39955)
+set(TA_TRACKED_MADNESS_TAG f7aa1401e CACHE STRING "GIT_TAG (branch or hash) for cloning MADNESS")
+set(TA_TRACKED_MADNESS_PREVIOUS_TAG 7d8aaf9d51981e4accf4d84742270d1473f8ca2e)
 set(TA_TRACKED_MADNESS_VERSION 0.10.1)
 set(TA_TRACKED_MADNESS_PREVIOUS_VERSION 0.10.1)