fix: error handling to prevent panics (#8248)

# Which Problems Are Solved

We found multiple cases where either the error was not properly handled,
which led to panics.

# How the Problems Are Solved

Handle the errors.

# Additional Changes

None.

# Additional Context

- noticed internally

internal/api/oidc/auth_request.go

@@ -513,6 +513,11 @@ func (s *Server) authorizeCallbackHandler(w http.ResponseWriter, r *http.Request
 		return authReq, s.authResponse(authReq, authorizer, w, r)
 	}(r.Context())
 	if err != nil {
+		// we need to make sure there's no empty interface passed
+		if authReq == nil {
+			op.AuthRequestError(w, r, nil, err, authorizer)
+			return
+		}
 		op.AuthRequestError(w, r, authReq, err, authorizer)
 	}
 }