feat(dap): close dap-float window with q. (#6884)

## Description

nvim-dap-ui's widget window to preview value of object under the cursor
has ftype `dap-float`. Include it so it can be closed quickly like other
popup windows.

## Related Issue(s)

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  If this PR fixes any issues, please link to the issue here.
  - Fixes #<issue_number>
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## Screenshots

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## Checklist

- [x] I've read the
[CONTRIBUTING](https://github.com/LazyVim/LazyVim/blob/main/CONTRIBUTING.md)
guidelines.

lua/lazyvim/config/autocmds.lua

@@ -56,6 +56,7 @@ vim.api.nvim_create_autocmd("FileType", {
   pattern = {
     "PlenaryTestPopup",
     "checkhealth",
+    "dap-float",
     "dbout",
     "gitsigns-blame",
     "grug-far",