fix: #include <algorithm> in HoughTransformUtils for std::sort (#…

…3758)

With gcc-14, the following compilation failure is reported:
```
     438    In file included from /home/wdconinc/git/acts/Core/include/Acts/Seeding/HoughTransformUtils.hpp:374,
     439                     from /home/wdconinc/git/acts/Examples/Algorithms/TrackFinding/include/ActsExamples/TrackFinding/MuonHoughSeeder.hpp:12,
     440                     from /home/wdconinc/git/acts/Examples/Algorithms/TrackFinding/src/MuonHoughSeeder.cpp:9:
     441    /home/wdconinc/git/acts/Core/include/Acts/Seeding/HoughTransformUtils.ipp: In member function 'std::vector<Acts::HoughTransformUtils::PeakFinders::IslandsAroundMax<identifier_t>::Maximum> Acts::HoughTransformUtils::PeakFind
            ers::IslandsAroundMax<identifier_t>::findPeaks(const Acts::HoughTransformUtils::HoughPlane<identifier_t>&, const Acts::HoughTransformUtils::HoughAxisRanges&)':
  >> 442    /home/wdconinc/git/acts/Core/include/Acts/Seeding/HoughTransformUtils.ipp:224:8: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
     443      224 |   std::sort(candidates.begin(), candidates.end(),
     444          |        ^~~~
     445          |        qsort
  >> 446    make[2]: *** [Examples/Algorithms/TrackFinding/CMakeFiles/ActsExamplesTrackFinding.dir/build.make:177: Examples/Algorithms/TrackFinding/CMakeFiles/ActsExamplesTrackFinding.dir/src/MuonHoughSeeder.cpp.o] Error 1
     447    make[2]: *** Waiting for unfinished jobs....
```
This appears to be due to a missing `#include <algorithm>` before the use of `std::sort` in the `.ipp` file. This PR adds the `algorithm` header to the `.hpp` file.

Core/include/Acts/Seeding/HoughTransformUtils.hpp

@@ -14,6 +14,7 @@
 #include "Acts/Utilities/Logger.hpp"
 #include "Acts/Utilities/Result.hpp"
 
+#include <algorithm>
 #include <array>
 #include <map>
 #include <optional>