feat: support types.Struct as interface args

[tomMoulard]

This PR adds support for *types.Array.
Usefull when mocking an interface that look like this:

type Foo interface {
	Bar(toto struct{titi string})
}

Current mocktail output

> mocktail
panic: OOPS *types.Struct struct{}

goroutine 1 [running]:
main.getTypeImports({0x1003e7cc8?, 0x140023c9920?})
	/Users/tom.moulard/go/pkg/mod/github.com/traefik/mocktail@v0.6.0/mocktail.go:244 +0x3a0
main.getTypeImports({0x1003e7c50?, 0x140072834c0})
	/Users/tom.moulard/go/pkg/mod/github.com/traefik/mocktail@v0.6.0/mocktail.go:221 +0x184
main.getTupleImports({0x1400e88f6c8, 0x2, 0x14002b6cea0?})
	/Users/tom.moulard/go/pkg/mod/github.com/traefik/mocktail@v0.6.0/mocktail.go:201 +0x130
main.getMethodImports(0x14001553290?, {0x1400024806a, 0x4f})
	/Users/tom.moulard/go/pkg/mod/github.com/traefik/mocktail@v0.6.0/mocktail.go:187 +0x60
main.walk.func1({0x1400021d400, 0x76}, {0x1003ea040, 0x14000220e40}, {0x0?, 0x0?})
	/Users/tom.moulard/go/pkg/mod/github.com/traefik/mocktail@v0.6.0/mocktail.go:161 +0x77c
path/filepath.walkDir({0x1400021d400, 0x76}, {0x1003ea040, 0x14000220e40}, 0x1400e88fdc8)
	/opt/homebrew/Cellar/go/1.23.0/libexec/src/path/filepath/path.go:310 +0x44
path/filepath.walkDir({0x14000205f80, 0x69}, {0x1003ea040, 0x1400020c9c0}, 0x1400e88fdc8)
	/opt/homebrew/Cellar/go/1.23.0/libexec/src/path/filepath/path.go:332 +0x21c
path/filepath.walkDir({0x140002057a0, 0x61}, {0x1003ea040, 0x1400020c5c0}, 0x1400e88fdc8)
	/opt/homebrew/Cellar/go/1.23.0/libexec/src/path/filepath/path.go:332 +0x21c
path/filepath.walkDir({0x1400015d680, 0x59}, {0x1003ea040, 0x14000094500}, 0x1400e88fdc8)
	/opt/homebrew/Cellar/go/1.23.0/libexec/src/path/filepath/path.go:332 +0x21c
path/filepath.walkDir({0x1400001c2d0, 0x4c}, {0x1003ea008, 0x14000028400}, 0x1400e88fdc8)
	/opt/homebrew/Cellar/go/1.23.0/libexec/src/path/filepath/path.go:332 +0x21c
path/filepath.WalkDir({0x1400001c2d0, 0x4c}, 0x140000dbdc8)
	/opt/homebrew/Cellar/go/1.23.0/libexec/src/path/filepath/path.go:400 +0x78
main.walk({0x1400001c2d0, 0x4c}, {0x1400001a240, 0x32})
	/Users/tom.moulard/go/pkg/mod/github.com/traefik/mocktail@v0.6.0/mocktail.go:82 +0xb8
main.main()
	/Users/tom.moulard/go/pkg/mod/github.com/traefik/mocktail@v0.6.0/mocktail.go:61 +0x1b0
exit status 2
make: *** [generate] Error 1