Request for Dropbox 11.x for Windows on Conda

Can you provide an 11.x version of the Dropbox SDK via the Anaconda package manager? The primary Conda package channels show only Dropbox 10.x to be available on [anaconda](https://anaconda.org/anaconda/dropbox) and [conda-forge](https://anaconda.org/conda-forge/dropbox).

While there is an 11.25 version on conda-forge, I can't get it to install with conda. The 10.x version in the Anaconda channel installs without issu. In my experience, the Conda environment fails with conflicts even when only Dropbox 11.x and Python are the required dependencies. Is the version listed on conda-forge really compatible with Windows, Mac and Linux?

***Somple Conda environment spec that fails to install***

**Versions**
* What version of the SDK are you using?
Currently only 10.x installs.
* What version of the language are you using?
Python 3.8
* What platform are you using? (if applicable)
Windows

Nenhum arquivo de projeto ou teste é especificado. Comece reproduzindo o ambiente Conda com falha no Windows usando Python 3.8 e compare os metadados do pacote Dropbox 11.25 nos canais Anaconda e conda-forge. Considera-se concluído quando o Dropbox SDK 11.x for instalado sem conflitos de dependências nas plataformas especificadas.

Escrita pelo modelo de indexação a partir do texto da issue.