`dvc push/pull --remote webdavs`: missing webdavclient3 dependency under miniconda3 install

Bug Report

dvc push/pull --remote webdavs: missing webdavclient3 dependency under miniconda3 install

Description

When installing dvc via conda or mamba on a miniconda install, one cannot make use of webdavs remotes since missing dependencies are installed

Reproduce

1. install miniconda
2. install dvc via conda install -c conda-forge dvc
3. perform dvc fetch/pull/push with a webdavs remote

ERROR: failed to push data to the cloud - URL $URL is supported but requires these missing dependencies: ['webdavclient3']. To install dvc with those dependencies, run:                                                                  
                                                                                                                           
        conda install -c conda-forge dvc-webdav 

The funny thing is, dvc-webdav is not registered on conda and runnning conda install -c conda-forge dvc-webdav fails. The correct way to install the missing dependencies is via conda install webdavclient3

Expected

Webdavs is either supported in the dvc package (e.g. by adding webdavclient3 as a dependency) or a dvc-webdav is properly added to conda and referred to in the docs etc.

Environment information

Output of dvc doctor:

$ dvc doctor                                                              
DVC version: 2.3.0 (conda)
---------------------------------
Platform: Python 3.7.3 on Linux-5.4.0-74-lowlatency-x86_64-with-debian-bullseye-sid
Supports: http, https, webdav, webdavs
Cache types: hardlink, symlink
Cache directory: ext4 on /dev/nvme1n1p1
Caches: local
Remotes: local, webdavs
Workspace directory: ext4 on /dev/nvme1n1p1
Repo: dvc, git

Additional Information (if any):

[skshetry]

I’ll do it shortly.

[skshetry]

@ORippler, no worries. I am adding the dependency in the conda-forge now(https://github.com/conda-forge/staged-recipes/pull/15518), hopefully the next release will come with webdav support.