feat: add upstream_parameters to oidc providers config

[splaunov]

While upstream parameters are already supported as part of a user request, sometimes there is a need to set them as a static values in a provider config.

Related issue(s)

#3138

Checklist

• [x ] I have read the contributing guidelines.
• [x ] I have referenced an issue containing the design document if my change
  introduces a new feature.
• [x ] I am following the
  contributing code guidelines.
• [x ] I have read the security policy.
• [x ] I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security vulnerability, I
  confirm that I got the approval (please contact
  security@ory.sh) from the maintainers to push
  the changes.
• [x ] I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.

Further Comments

[codecov]

Codecov Report

Attention: Patch coverage is 29.41176% with 36 lines in your changes are missing coverage. Please review.

Project coverage is 78.36%. Comparing base (5288bc7) to head (9bdd544).
Report is 1 commits behind head on master.

❗ Current head 9bdd544 differs from pull request most recent head 4e86e2f. Consider uploading reports for the commit 4e86e2f to get more accurate results

Files	Patch %	Lines
selfservice/strategy/oidc/provider_discord.go	0.00%	3 Missing ⚠️
selfservice/strategy/oidc/provider_patreon.go	0.00%	3 Missing ⚠️
selfservice/strategy/oidc/provider_apple.go	0.00%	2 Missing ⚠️
selfservice/strategy/oidc/provider_dingtalk.go	0.00%	2 Missing ⚠️
selfservice/strategy/oidc/provider_generic_oidc.go	75.00%	1 Missing and 1 partial ⚠️
selfservice/strategy/oidc/provider_github.go	0.00%	2 Missing ⚠️
selfservice/strategy/oidc/provider_github_app.go	0.00%	2 Missing ⚠️
selfservice/strategy/oidc/provider_google.go	60.00%	1 Missing and 1 partial ⚠️
selfservice/strategy/oidc/provider_lark.go	0.00%	2 Missing ⚠️
selfservice/strategy/oidc/provider_linkedin.go	0.00%	2 Missing ⚠️
... and 7 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3644      +/-   ##
==========================================
+ Coverage   78.02%   78.36%   +0.33%     
==========================================
  Files         362      344      -18     
  Lines       25296    23516    -1780     
==========================================
- Hits        19737    18428    -1309     
+ Misses       4047     3699     -348     
+ Partials     1512     1389     -123     

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