doc: scripts: redirects: fix redirect for arduino_uno_r4_minima

The directory name in boards has been changed with the addition of
support for Arduino UNO R4 WiFi, so add a redirect from
boards/arduino/uno_r4_minima to boards/arduino/uno_r4.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@fujitsu.com>

doc/_scripts/redirects.py

@@ -15,6 +15,7 @@
 REDIRECTS = [
     # zephyr-keep-sorted-start
     ('application/index', 'develop/application/index'),
+    ('boards/arduino/uno_r4_minima/doc/index', 'boards/arduino/uno_r4/doc/index'),
     ('boards/x86/ehl_crb/doc/index', 'boards/x86/intel_ehl/doc/index'),
     ('boards/x86/rpl_crb/doc/index', 'boards/x86/intel_rpl/doc/index'),
     ('connectivity/bluetooth/bluetooth-audio-arch', 'connectivity/bluetooth/bluetooth-le-audio-arch'),