Update ESP-IDF to fix PinAlarm

Fixes micropython#5973

.gitmodules

@@ -145,8 +145,8 @@
 	url = https://github.com/adafruit/Adafruit_CircuitPython_RFM69.git
 [submodule "ports/espressif/esp-idf"]
 	path = ports/espressif/esp-idf
-	url = https://github.com/adafruit/esp-idf.git
-	branch = circuitpython-v4.4
+	url = https://github.com/espressif/esp-idf.git
+	branch = release/v4.4
 [submodule "ports/espressif/certificates/nina-fw"]
 	path = ports/espressif/certificates/nina-fw
 	url = https://github.com/adafruit/nina-fw.git

ports/espressif/common-hal/alarm/__init__.c

@@ -166,13 +166,6 @@ void NORETURN common_hal_alarm_enter_deep_sleep(void) {
     alarm_pin_pinalarm_prepare_for_deep_sleep();
     alarm_touch_touchalarm_prepare_for_deep_sleep();
 
-    // Disable brownout detection, which appears to be triggered sometimes when
-    // waking from deep sleep.
-    // See https://www.esp32.com/viewtopic.php?f=13&t=19208#p71084
-    // and https://github.com/adafruit/circuitpython/issues/4025#issuecomment-771027606
-    // TODO: We can remove this workaround when ESP-IDF handles this.
-    CLEAR_PERI_REG_MASK(RTC_CNTL_BROWN_OUT_REG, RTC_CNTL_BROWN_OUT_RST_ENA);
-
     // The ESP-IDF caches the deep sleep settings and applies them before sleep.
     // We don't need to worry about resetting them in the interim.
     esp_deep_sleep_start();