External library test - Example change for WS2812FX lib (#8146)

* Added 2 new libs + removed unnecessary multiple examples

* Change example for WS2812FX lib

.github/workflows/lib.json

@@ -60,7 +60,7 @@
         "name": "WS2812FX",
         "exclude_targets": [],
         "sketch_path": [
-            "~/Arduino/libraries/WS2812FX/examples/ws2812fx_matrix/ws2812fx_matrix.ino"
+            "~/Arduino/libraries/WS2812FX/examples/ws2812fx_spi/ws2812fx_spi.ino"
         ]
     }
 ]
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