Update more-itertools to 8.4.0

[pyup-bot]

This PR updates more-itertools from 7.0.0 to 8.4.0.

Changelog

8.4.0

See [the changelog](https://github.com/more-itertools/more-itertools/blob/fc70d910cd2a8579e9b4e5fd38f8a8acf4abb2d7/docs/versions.rst840) for details.

8.3.0

See the [release notes](https://github.com/more-itertools/more-itertools/blob/41a6d0fcc01b29e6c5839979a16a834a7b4d0fd8/docs/versions.rst830) for details.

8.2.0

See the [release notes](https://raw.githubusercontent.com/erikrose/more-itertools/0861bed72ddd4c8ebcfa3a932b7689e272c43478/docs/versions.rst) for details.

8.1.0

See the [release notes](https://github.com/erikrose/more-itertools/blob/ba499fc5f38c7441271c3f147cfd9abbc587556d/docs/versions.rst).

8.0.2

See [the release notes](https://github.com/erikrose/more-itertools/blob/b2c747c2bf642bb9e193a3428bb0052614d420b4/docs/versions.rst802).

8.0.1

See the [release notes](https://github.com/erikrose/more-itertools/blob/765c71b265bb6b34f28fc14500f0f4ab2d3d36ef/docs/versions.rst801) for details.

8.0.0

See [the release notes](https://github.com/erikrose/more-itertools/blob/4661c942c49fe891a80b50c201983d00db75af13/docs/versions.rst800) for details.

7.2.0

See the [release notes](https://github.com/erikrose/more-itertools/blob/0f4a66cdce0e153594eb95beb292fd5ea4393473/docs/versions.rst) for details.

7.1.0

See [the release notes](https://github.com/erikrose/more-itertools/blob/4152860cbbd7a073253d075472c1eb3b73e38a6a/docs/versions.rst710) for details.

Links

• PyPI: https://pypi.org/project/more-itertools
• Changelog: https://pyup.io/changelogs/more-itertools/
• Repo: https://github.com/more-itertools/more-itertools
• Docs: https://pythonhosted.org/more-itertools/

[codecov-commenter]

Codecov Report

Merging #316 into master will increase coverage by 6.36%.
The diff coverage is 100.00%.

@@ Coverage Diff @@## master #316 +/- ##
===========================================
+ Coverage 93.63% 100.00% +6.36% 
===========================================
Files 11 12 +1 Lines 110 116 +6 ===========================================
+ Hits 103 116 +13 + Misses 7 0 -7 

Impacted Files	Coverage Δ
libpythonpro/github_api.py	100.00% <ø> (+100.00%)	⬆️
...ythonpro/tests/test_spam/test_enviador_de_email.py	100.00% <100.00%> (ø)
...ests/test_spam/test_envio_para_base_de_usuarios.py	100.00% <100.00%> (ø)
libpythonpro/tests/test_spam/test_github_api.py	100.00% <100.00%> (ø)

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[pyup-bot]

Closing this in favor of #350