update V4 targets to new NeoPixelBus 2.7.1

makuna/NeoPixelBus @ 2.7.1 was just released. This upgrades all "V4" targets to use the new release.

platformio.ini

@@ -268,7 +268,8 @@ build_flagsV4 = -g
 ;;; V4.4.x libraries (without LOROL_LITTLEFS; with newer NeoPixelBus)
 lib_depsV4 =
   ${env.lib_deps}
-  https://github.com/Makuna/NeoPixelBus.git#master @ 2.7.1  ;; NPB 2.6.9 tends to crash whith IDF V4.4.3 -> use latest NeoPixelBus 2.7.1 instead
+  ;https://github.com/Makuna/NeoPixelBus.git#master ;; NPB 2.6.9 tends to crash whith IDF V4.4.3 -> use latest NeoPixelBus dev instead
+  makuna/NeoPixelBus @ 2.7.1
   https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
 
 [esp32s2]
@@ -310,7 +311,8 @@ build_flags = -g
 lib_deps =
   ${env.lib_deps}
   ;; currently we need the latest NeoPixelBus dev version, because it contains important bugfixes for -S3
-  https://github.com/Makuna/NeoPixelBus.git#master @ 2.7.1
+  ;https://github.com/Makuna/NeoPixelBus.git#master ;; NPB 2.6.9 tends to crash whith IDF V4.4.3 -> use latest NeoPixelBus dev instead
+  makuna/NeoPixelBus @ 2.7.1
   https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
 
 
@@ -591,7 +593,7 @@ build_flags_min =
   -D WLED_DISABLE_BLYNK ; BLYNK is only provided for backwards compatibility (no new users accepted)
   ;-D WLED_DISABLE_BROWNOUT_DET ; enable if you get "brownout detected" errors at startup 
   -D WLED_USE_MY_CONFIG
-  -D WLED_USE_CIE_BRIGHTNESS_TABLE ;; experimental: use different color / brightness lookup table
+  ; -D WLED_USE_CIE_BRIGHTNESS_TABLE ;; experimental: use different color / brightness lookup table
   -D USERMOD_AUDIOREACTIVE
   -D UM_AUDIOREACTIVE_USE_NEW_FFT ; use latest (upstream) FFTLib, instead of older library modified by blazoncek. Slightly faster, more accurate, needs 2KB RAM extra   
   -D USERMOD_CUSTOMEFFECTS ; WLEDMM usermod