Fix warnings (possible function redefinition) regarding PartionedArrays

[raar1]

This may be to do with updating to Julia 1.10:

 PartitionedArrays
│  WARNING: Wrapping `Vararg` directly in UnionAll is deprecated (wrap the tuple instead).
│  You may need to write `f(x::Vararg{T})` rather than `f(x::Vararg{<:T})` or `f(x::Vararg{T}) where T` instead of `f(x::Vararg{T} where T)`.
└  
     Testing Running tests...
WARNING: Method definition loop!(Any, Any, Any) in module GalerkinToolkit at /home/runner/work/GalerkinToolkit.jl/GalerkinToolkit.jl/src/integration.jl:434 overwritten on the same line (check for duplicate calls to `include`).
WARNING: Method definition loop!(Any, Any, Any) in module GalerkinToolkit at /home/runner/work/GalerkinToolkit.jl/GalerkinToolkit.jl/src/integration.jl:434 overwritten at /home/runner/work/GalerkinToolkit.jl/GalerkinToolkit.jl/src/assembly.jl:412.
WARNING: Method definition loop!(Any, Any, Any) in module GalerkinToolkit at /home/runner/work/GalerkinToolkit.jl/GalerkinToolkit.jl/src/assembly.jl:412 overwritten on the same line (check for duplicate calls to `include`).