Fix compile error with clang

[nicolaslauzon]

Description

Summary:

My build was failing with clang 18.1.3

 error: non-constant-expression cannot be narrowed from type 'double' to 'ScalarType' (aka 'float') in initializer list [-Wc++11-narrowing]
  173 |         const ScalarType radiusSample{ radius * sqrt(uniformDistribution(randomNumberGenerator)) };

By inserting a static_cast it fixed it

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud