HTTP.download() not honoring local_path

[staticfloat]

Julia 1.5.1
HTTP.jl v0.8.17

Example:

julia> HTTP.download("https://pkg.julialang.org/registry/23338594-aafe-5451-b93e-139f81909106/7858451b7a520344eb60354f69809d30a44e7dae", "/tmp/7858451b7a520344eb60354f69809d30a44e7dae")
┌ Info: Downloading
│   source = "https://pkg.julialang.org/registry/23338594-aafe-5451-b93e-139f81909106/7858451b7a520344eb60354f69809d30a44e7dae"
│   dest = "/tmp/7858451b7a520344eb60354f69809d30a44e7dae.gz"
│   progress = 1.0
│   time_taken = "0.16 s"
│   time_remaining = "0.0 s"
│   average_speed = "12.986 MiB/s"
│   downloaded = "2.013 MiB"
│   remaining = "0 bytes"
└   total = "2.013 MiB"
"/tmp/7858451b7a520344eb60354f69809d30a44e7dae.gz"

Notice how it gets .gz appended to the end.

[quinnj]

Assigning to @oxinabox to take a look if able; otherwise, I can dig in if needed.