add repo tag and commit associated with the build

[cosmicBboy]

Tracking issue

https://github.com/flyteorg/flyte/issues/

Why are the changes needed?

To make the docs more transparent. This will make it clear which version of flytekit, flytesnacks, and flytectl were used to build a particular instance of the docs. The monodocs build process will use the latest tag available in the corresponding repo.

What changes were proposed in this pull request?

• Adds a custom _templates/page.html file that adapts the furo page.html file
• Adds a name attribute to the import_projects.Project dataclass
• Injects the necessary metadata into html_context

How was this patch tested?

• Built locally
• Preview can be found here: https://flyte-next.readthedocs.io/en/monodocs-checkout-tag/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6c84e46) 59.00% compared to head (0e843dc) 59.00%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4571   +/-   ##
=======================================
  Coverage   59.00%   59.00%           
=======================================
  Files         621      621           
  Lines       52498    52498           
=======================================
  Hits        30974    30974           
  Misses      19057    19057           
  Partials     2467     2467           

Flag	Coverage Δ
unittests	59.00% <ø> (ø)

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