Fix Issue #240: Adjust SpaceSchemeV2 id & homepageID Types

[squatched]

Fixes #240 by addressing the following two discrepancies between Confluence Space V2 API's Get Method return values and SpaceSchemaV2's member types':

• Confluence Space V2 API Returns HomepageID As String
• Confluence Space V2 API Returns ID As String

[squatched]

Not sure if this is how you actually want to address this since this is somewhat of a breaking change for folks already using this particular API method...

[codecov]

Codecov Report

Merging #241 (c7a7787) into main (97c7c52) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #241   +/-   ##
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  Coverage   89.25%   89.25%           
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  Files         148      148           
  Lines       11626    11626           
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  Hits        10377    10377           
  Misses        632      632           
  Partials      617      617           

[ctreminiom]

Hi @squatched, thanks for this PR...

I would think to release a new version of the library (v1.5.1) after merge this PR on a new major release (v.1.6.0) due it's breaking change :)

[ctreminiom]

@squatched thanks for the contribution!