Update mkdocs-material to 5.5.6

[pyup-bot]

This PR updates mkdocs-material from 5.5.3 to 5.5.6.

Changelog

5.5.6

* Switched base template for 404.html to main.html
* Fixed 1864: GitHub organisation stats not loading

mkdocs-material-5.5.5+insiders-1.2.0 (2020-08-11)

* Added feature to expand navigation by default

5.5.5

* Fixed missing vendor and worker distribution files

5.5.4

* Added support for sortable data tables

Links

• PyPI: https://pypi.org/project/mkdocs-material
• Changelog: https://pyup.io/changelogs/mkdocs-material/
• Repo: https://squidfunk.github.io/mkdocs-material/

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
No Duplication information

[codecov]

Codecov Report

Merging #280 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #280   +/-   ##
=======================================
  Coverage   60.50%   60.50%           
=======================================
  Files          43       43           
  Lines         947      947           
=======================================
  Hits          573      573           
  Misses        326      326           
  Partials       48       48