feat: allow to set non-default authorization request response mode (#3001)

* Update Go version in devcontainer

* Add option to change response mode in authorization request

* Fix option name

* Update docs and changelog

* Rename config value to underscore

* Add unit tests for added parameter

* Move change to upcoming release

* Generate alpha config

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Co-authored-by: Michael Cornel <michael@stieler.it>

providers/provider_data.go

@@ -37,6 +37,8 @@ type ProviderData struct {
 	ClientSecret      string
 	ClientSecretFile  string
 	Scope             string
+	// The response mode requested from the provider or empty for default ("query")
+	AuthRequestResponseMode string
 	// The picked CodeChallenge Method or empty if none.
 	CodeChallengeMethod string
 	// Code challenge methods supported by the Provider