Section 'Gamepads>Gamepads settings file' refers to old gdc.zip link

Notice the reference to gdc.zip in this section https://defold.com/manuals/input-gamepads/#gamepads-settings-file ([perma link to source](https://github.com/defold/doc/blob/08e12dc84681a0a04109731b3cb9b39f617edd30/docs/en/manuals/input-gamepads.md?plain=1#L114))

The link points the reader to an old forum post for the gdc.zip tool, but it should be pointing the the [releases page on github](https://github.com/defold/defold/releases) instead.

A quick search&replace should fix it.

Open docs/en/manuals/input-gamepads.md and locate the gdc.zip reference near line 114. Replace the old forum URL with the Defold releases page, then verify the rendered Gamepads settings file section shows the updated destination.

Written by the indexing model from the issue text.