Add deprecation note to provider landing page for recently deprecated providers"

[guineveresaenger]

This pull request adds a list of deprecated providers to the landing page docsgen so that the page can display a deprecation warning with relevant links.

Currently, the list only contains pulumi-civo; we will add to it as we deprecate.

Part of pulumi/pulumi-civo#696.

Screenshot of expected landing page as soon as we add Civo to the list of dynamically bridged providers:

• Add deprecation note to installation instructions and add Civo to a hardcoded list of recently-deprecated
• Add test to show that a provider returned by getDeprecateProviderNames contains a deprecation note

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.74%. Comparing base (3e16a80) to head (ae3dee6).
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2883      +/-   ##
==========================================
+ Coverage   67.73%   67.74%   +0.01%     
==========================================
  Files         328      328              
  Lines       42116    42132      +16     
==========================================
+ Hits        28526    28542      +16     
  Misses      11999    11999              
  Partials     1591     1591              

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[pulumi-bot]

This PR has been shipped in release v3.103.0.