Refactor auxiliary build services and tasks

[caendesilva]

This update refactors the build services for the generation of sitemaps, RSS feeds, and documentation search index. These are now handled by post-build tasks, and are simplified.

Much of the return information has been removed as well as preflight checks. We may want to add some exceptions in the related services as the following messages (among others) have been removed

• Cannot generate sitemap.xml, please check your configuration.
• You don't have a site URL configured. Check config/hyde.php
• You have disabled sitemap generation in config/hyde.php
• You can enable sitemap generation by setting site.generate_sitemap to true
• Cannot generate sitemap.xml, please check your configuration.
• You don't have the simplexml extension installed. Check your PHP installation.

I also had to remove the output message tests as they stopped working, but they are present in the terminal when running builds. See 19d3e7d

[codecov]

Codecov Report

Merging #453 (fe20c62) into master (1afa4de) will decrease coverage by 0.35%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #453      +/-   ##
============================================
- Coverage     99.95%   99.60%   -0.36%     
+ Complexity      924      919       -5     
============================================
  Files           107      109       +2     
  Lines          2277     2267      -10     
============================================
- Hits           2276     2258      -18     
- Misses            1        9       +8     

Impacted Files	Coverage Δ
packages/framework/src/Concerns/ActionCommand.php	0.00% <ø> (-100.00%)	⬇️
...ork/src/Actions/PostBuildTasks/GenerateRssFeed.php	100.00% <100.00%> (ø)
...work/src/Actions/PostBuildTasks/GenerateSearch.php	100.00% <100.00%> (ø)
...ork/src/Actions/PostBuildTasks/GenerateSitemap.php	100.00% <100.00%> (ø)
...framework/src/Commands/HydeBuildRssFeedCommand.php	100.00% <100.00%> (ø)
.../framework/src/Commands/HydeBuildSearchCommand.php	100.00% <100.00%> (ø)
...framework/src/Commands/HydeBuildSitemapCommand.php	100.00% <100.00%> (ø)
...mework/src/Commands/HydeBuildStaticSiteCommand.php	100.00% <100.00%> (ø)
...ages/framework/src/Contracts/AbstractBuildTask.php	100.00% <100.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[caendesilva]

Coverage is in large part failing due to there not being any coverage for the deprecated test, that's fine for this PR as it will be resolved in the upcoming release that removes it.