fix Next.js static routes with server actions

[leoortizz]

Description

Fixes #6653

• Require a Cloud Function for static routes with server action
• Skip routes using server action in static routes

Scenarios Tested

Sample Commands

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 52.00000% with 12 lines in your changes are missing coverage. Please review.

Project coverage is 54.23%. Comparing base (06220c3) to head (6ddcd9a).

Files	Patch %	Lines
src/frameworks/next/index.ts	0.00%	11 Missing ⚠️
src/frameworks/next/utils.ts	90.90%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6664   +/-   ##
=======================================
  Coverage   54.22%   54.23%           
=======================================
  Files         352      352           
  Lines       24500    24524   +24     
  Branches     5069     5073    +4     
=======================================
+ Hits        13285    13300   +15     
- Misses      10001    10010    +9     
  Partials     1214     1214           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jamesdaniels]

LGTM, tackle TODOs. I'll see if next/index.ts:477-482 is needed or if it's considered a hosting bug. Add changelog.

[leoortizz]

@jamesdaniels this depends on #6816