tests: update snapshot for 'Python Code'

Author: machow

pins/tests/_snapshots/test_board_pin_write_rsc_index_html/index.html

@@ -56,7 +56,7 @@ <h3>derek/test_rsc_pin</h3>
      </section>
 
     <section>
-    <h3>Code</h3>
+    <h3>Python Code</h3>
 
     <pre id="pin-python" class="pin-code"><code class="python">from pins import board_rsconnect
 board = board_rsconnect(server_url='http://localhost:3939')