feat: Support DPoP on Okta/OIDC Connections - EA

[duedares-rvj]

🔧 Changes

Allow configuring DPoPSigningAlg for Okta/OIDC Connections

📚 References

connection: Connection{
			Name:     auth0.Stringf("Test-Okta-Connection"),
			Strategy: auth0.String("okta"),
		},
		options: &ConnectionOptionsOkta{
			ClientID:              auth0.String("4ef8d976-71bd-4473-a7ce-087d3f0fafd8"),
			ClientSecret:          auth0.String("mySecret"),
			Scope:                 auth0.String("openid"),
			Domain:                auth0.String("domain.okta.com"),
			Issuer:                auth0.String("https://example.com"),
			AuthorizationEndpoint: auth0.String("https://example.com"),
			DPoPSigningAlg: auth0.String("ES256"),
		}

🔬 Testing

Relevant test case add and recorded.

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.77%. Comparing base (200e6f8) to head (34201e3).

Additional details and impacted files

@@           Coverage Diff           @@
##               v1     #734   +/-   ##
=======================================
  Coverage   96.76%   96.77%           
=======================================
  Files          62       62           
  Lines       10891    10899    +8     
=======================================
+ Hits        10539    10547    +8     
  Misses        234      234           
  Partials      118      118           

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