Fix warning for `Base.Bool`

[inkydragon]

┌ Float8s
│  WARNING: Constructor for type "Bool" was extended in `Float8s` without explicit qualification or import.
│    NOTE: Assumed "Bool" refers to `Base.Bool`. This behavior is deprecated and may differ in future versions.`
│    NOTE: This behavior may have differed in Julia versions prior to 1.12.
│    Hint: If you intended to create a new generic function of the same name, use `function Bool end`.
│    Hint: To silence the warning, qualify `Bool` as `Base.Bool` in the method signature or explicitly `import Base: Bool`.
└  

https://github.com/JuliaMath/Float8s.jl/actions/runs/19420688503/job/55557294147#step:6:69