chore(deps): update dependency django-environ to v0.7.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
django-environ (source, changelog)	==0.6.0 -> ==0.7.0

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Release Notes

joke2k/django-environ

v0.7.0

Compare Source

Added
+++++

• Added support for negative float strings
  #&#8203;160 <https://github.com/joke2k/django-environ/issues/160>_.
• Added Elasticsearch5 to search scheme
  #&#8203;297 <https://github.com/joke2k/django-environ/pull/297>_.
• Added Elasticsearch7 to search scheme
  #&#8203;314 <https://github.com/joke2k/django-environ/issues/314>_.
• Added the ability to use bytes or str as a default value for Env.bytes().

Fixed
+++++

• Fixed links in the documentation.
• Use default option in Env.bytes()
#&#8203;206 <https://github.com/joke2k/django-environ/pull/206>_.
• Safely evaluate a string containing an invalid Python literal
  #&#8203;200 <https://github.com/joke2k/django-environ/issues/200>_.

Changed
+++++++

• Added 'Funding' and 'Say Thanks!' project urls on pypi.
• Stop raising UserWarning if .env file isn't found. Log a message with
  INFO log level instead #&#8203;243 <https://github.com/joke2k/django-environ/issues/243>_.

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