Next dev iteration

[0xnm]

What does this PR do?

Bumping dev version to 1.15.0 because of 1.14.0 release.

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.27%. Comparing base (46233f7) to head (ef513cd).

Additional details and impacted files

@@              Coverage Diff              @@
##             develop     #267      +/-   ##
=============================================
- Coverage      78.34%   78.27%   -0.07%     
+ Complexity       254      253       -1     
=============================================
  Files             31       31              
  Lines            914      911       -3     
  Branches         114      114              
=============================================
- Hits             716      713       -3     
  Misses           147      147              
  Partials          51       51              

see 2 files with indirect coverage changes