DEVX-7644: Update Meetings API Endpoints

[superchilled]

This PR:

Updates the endpoints for all the Meetings API methods and associated tests in order to prepend the paths for each endpoint with /v1 (which is in line with the API spec).

[codecov-commenter]

Codecov Report

Merging #286 (9372157) into main (31d62cb) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 9372157 differs from pull request most recent head 1c78e1d. Consider uploading reports for the commit 1c78e1d to get more accurate results

@@           Coverage Diff           @@
##             main     #286   +/-   ##
=======================================
  Coverage   97.96%   97.96%           
=======================================
  Files         107      107           
  Lines        1967     1967           
=======================================
  Hits         1927     1927           
  Misses         40       40           

Files Changed	Coverage Δ
lib/vonage/meetings/sessions.rb	100.00% <ø> (ø)
lib/vonage/meetings/applications.rb	100.00% <100.00%> (ø)
lib/vonage/meetings/dial_in_numbers.rb	100.00% <100.00%> (ø)
lib/vonage/meetings/recordings.rb	100.00% <100.00%> (ø)
lib/vonage/meetings/rooms.rb	100.00% <100.00%> (ø)
lib/vonage/meetings/themes.rb	100.00% <100.00%> (ø)

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