[stephanlachnit]

Produces some noise for end users unrelated to their project:

In file included from ../subprojects/robin-map-1.4.1/include/tsl/robin_hash.h:43,
                 from ../subprojects/robin-map-1.4.1/include/tsl/robin_map.h:34,
                 from ../subprojects/nanobind-3.1.0/src/nb_internals.h:15,
                 from ../subprojects/nanobind-3.1.0/src/nb_internals.cpp:12,
                 from ../subprojects/nanobind-3.1.0/src/nb_combined.cpp:78:
../subprojects/robin-map-1.4.1/include/tsl/robin_growth_policy.h: In constructor ‘tsl::rh::power_of_two_growth_policy<GrowthFactor>::power_of_two_growth_policy(std::size_t&) [with long unsigned int GrowthFactor = 2]’:
../subprojects/robin-map-1.4.1/include/tsl/robin_growth_policy.h:106:51: warning: ‘<unknown>’ may be used uninitialized [-Wmaybe-uninitialized]
  106 |     if (min_bucket_count_in_out > max_bucket_count()) {
      |                                   ~~~~~~~~~~~~~~~~^~
../subprojects/robin-map-1.4.1/include/tsl/robin_growth_policy.h:143:15: note: by argument 1 of type ‘const tsl::rh::power_of_two_growth_policy<2>*’ to ‘std::size_t tsl::rh::power_of_two_growth_policy<GrowthFactor>::max_bucket_count() const [with long unsigned int GrowthFactor = 2]’ declared here
  143 |   std::size_t max_bucket_count() const {
      |               ^~~~~~~~~~~~~~~~

Since this is fully within tsl-robin-map I don't think this should be spit out for every nanobind file.

Upstream fix is Tessil/robin-map#96 and mostly cosmetic.