handle next.config.mjs

[leoortizz]

Description

next.config.mjs is the default since v14.0.5-canary.50

fixes #6826

Scenarios Tested

Sample Commands

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 12.50000% with 14 lines in your changes are missing coverage. Please review.

Project coverage is 54.78%. Comparing base (49e596e) to head (9e5f80d).

Files	Patch %	Lines
src/frameworks/next/index.ts	0.00%	11 Missing ⚠️
src/frameworks/next/utils.ts	25.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6933      +/-   ##
==========================================
- Coverage   54.79%   54.78%   -0.02%     
==========================================
  Files         359      359              
  Lines       25060    25069       +9     
  Branches     5167     5169       +2     
==========================================
+ Hits        13732    13733       +1     
- Misses      10091    10099       +8     
  Partials     1237     1237              

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[jamesdaniels]

Change log and merge