SE-1071 increase NLTK download timeout

Description

Default timeout for get_url is 10s, and NLTK usually takes longer than
this to download.

*JIRA tickets*:

*Dependencies*: None

*Merge deadline*: None

*Testing instructions*:

1. run configuration and confirm that nltk data is downloaded successfully

*Reviewers*

  • [ ] @pomegranited

  • [ ] edX reviewer[s] TBD

*Settings*
```yaml
```

Status

Assignee

Unassigned

Reporter

Open Source Pull Request Bot

Labels

Contributor Name

Samuel Walladge

Repo

edx/configuration

Customer

Epic Link

None

OSCM Assignee

None

Priority

Unset
Configure