fix(provider): fix framework provider meta for all various config sources

[estellesoulard]

#3718

I tried to keep the sdkv2, framework provider, and meta logic cleanly delimitated, while remaining faithful to the initial sdkv2 implementation.
The sdkv2 config schema schema.ResourceData now translates as a custom FrameworkProviderConfig on Framework Provider side (which I had to leave in the provider package to prevent having silly circular imports, hence the slight implementation asymmetry between the two providers).

[codecov-commenter]

Codecov Report

❌ Patch coverage is 7.60870% with 85 lines in your changes missing coverage. Please review.
✅ Project coverage is 2.31%. Comparing base (ce0b433) to head (5812fb8).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
internal/meta/meta.go	12.06%	51 Missing ⚠️
provider/framework.go	0.00%	34 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #3728   +/-   ##
=====================================
  Coverage   2.31%   2.31%           
=====================================
  Files        471     471           
  Lines      51669   51750   +81     
=====================================
+ Hits        1196    1199    +3     
- Misses     50381   50460   +79     
+ Partials      92      91    -1     

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