DEVX-7808: Meetings API Updates

[superchilled]

This PR:

• Updates the comment for the Rooms#create method to expand the list of available languages
• Fixes the Sessions::ListResponse#each method

[superchilled]

~WIP. Don't merge.~

Ready to merge.

[codecov-commenter]

Codecov Report

Merging #293 (97b5287) into main (e456fd3) will not change coverage. The diff coverage is 100.00%.

:exclamation: Current head 97b5287 differs from pull request most recent head 543b523. Consider uploading reports for the commit 543b523 to get more accurate results

@@           Coverage Diff           @@
##             main     #293   +/-   ##
=======================================
  Coverage   97.93%   97.93%           
=======================================
  Files         108      108           
  Lines        1988     1988           
=======================================
  Hits         1947     1947           
  Misses         41       41           

Files	Coverage Δ
lib/vonage/meetings/rooms.rb	100.00% <ø> (ø)
lib/vonage/meetings/sessions/list_response.rb	100.00% <100.00%> (ø)

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