Fix a test to account for newer versions of Org (Emacs >= 30)

* test/jupyter-test.el (jupyter-org-result): Don't rely on knowing the
exact structure of an Org element.

test/jupyter-test.el

@@ -2106,15 +2106,19 @@ Image(filename='%s', width=300)" file)
 (ert-deftest jupyter-org-result ()
   :tags '(org)
   (let ((req (jupyter-org-request)))
-    (should (equal (jupyter-org-result req (list :text/plain "foo"))
-                   '(fixed-width (:value "foo"))))
-    (should (equal (jupyter-org-result req (list :text/html "foo"))
-                   '(export-block (:type "html" :value "foo\n"))))
+    (let ((res (jupyter-org-result req (list :text/plain "foo"))))
+      (should (eq (org-element-type res) 'fixed-width))
+      (should (equal (org-element-property :value res) "foo")))
+    (let ((res (jupyter-org-result req (list :text/html "foo"))))
+      (should (eq (org-element-type res) 'export-block))
+      (should (equal (org-element-property :type res) "html"))
+      (should (equal (org-element-property :value res) "foo\n")))
     ;; Calls `org-babel-script-escape' for scalar data
     (should (equal (jupyter-org-result req (list :text/plain "[1, 2, 3]"))
                    "| 1 | 2 | 3 |\n"))
-    (should (equal (jupyter-org-result req (list :text/plain "[1, 2, 3] Foo"))
-                   '(fixed-width (:value "[1, 2, 3] Foo"))))))
+    (let ((res (jupyter-org-result req (list :text/plain "[1, 2, 3] Foo"))))
+      (should (eq (org-element-type res) 'fixed-width))
+      (should (equal (org-element-property :value res) "[1, 2, 3] Foo")))))
 
 (ert-deftest jupyter-org-request-at-point ()
   :tags '(org)