Pin correct django-meta version

[protoroto]

Description

Pin correct django-meta version

References

Fix #763

Checklist

• [x] I have read the contribution guide
• [x] Code lint checked via inv lint
• [x] changes file included (see docs)
• [ ] Usage documentation added in case of new features
• [ ] Tests added

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (05b7033) 94.38% compared to head (6769b06) 94.38%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #765 +/- ## ======================================== Coverage 94.38% 94.38% ======================================== Files 26 26 Lines 1871 1871 Branches 266 266 ======================================== Hits 1766 1766 Misses 53 53 Partials 52 52 ``` | [Flag](https://app.codecov.io/gh/nephila/djangocms-blog/pull/765/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nephila) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/nephila/djangocms-blog/pull/765/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nephila) | `94.38% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nephila#carryforward-flags-in-the-pull-request-comment) to find out more.

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[coveralls]

coverage: 97.167%. remained the same when pulling 6769b06d031cbdc9add96c5053717c6aef3b5432 on protoroto:bugfix/issue-763-pin-correct-django-meta-version into 05b7033d6b9d3dee9ef469944d33fb9107af366d on nephila:develop.