🐞 Ctx.Params() always returns lower case string.

[hsblhsn]

Issue description

app.Get("/foo/:bar", handler)
// ...go
// curl localhost/foo/aBcD
// ...
val := c.Params("bar")
// val is "abcd"

Expected behavior

app.Get("/foo/:bar", handler)
// ...
// curl localhost/foo/aBcD
// ...
val := c.Params("bar")
// val is "aBcD"

[Fenny]

This fix will be shipped in the next release v1.10 I will keep this issue open until it's tagged.
To bypass this issue for now, you could set the CaseSensitive param to true.

app := fiber.New(&fiber.Settings{
  CaseSensitive: true,
})