Fix array overflow in exploding_fireworks #2239

Job	Run time
Gather Environments	9s
Builds (esp32_4MB_S)	41s
Builds (esp32_4MB_M)	55s
Builds (esp32_4MB_M_eth)	49s
Builds (esp32_4MB_M_debug)	48s
Builds (esp32_4MB_XL)	1m 18s
Builds (esp32_16MB_M)	50s
Builds (esp8266_2MB_S)	1m 14s
Builds (esp8266_4MB_S)	1m 9s
Builds (esp8266_4MB_M)	1m 17s
Builds (wemos_shield_esp32_4MB_M)	1m 20s
Builds (esp32_pico_4MB_M)	57s
Builds (esp32_4MB_PSRAM_S)	53s
Builds (esp32S3_4MB_S)	1m 30s
Builds (esp32S3_8MB_S)	1m 19s
Builds (esp32S3_8MB_M)	1m 33s
Builds (esp32S3_4MB_PSRAM_S)	53s
Builds (esp32S3_4MB_PSRAM_M)	59s
Builds (esp32S3_8MB_PSRAM_M)	1m 29s
Builds (esp32S3_16MB_PSRAM_M_HUB75)	1m 34s
Builds (esp32S3_WROOM-2_M)	1m 36s
Builds (esp32s2_PSRAM_S)	56s
Builds (esp32s2_PSRAM_M)	1m 0s
Builds (esp32c3dev_4MB_M)	49s
Builds (esp32c3dev_2MB_M)	58s
Builds (esp32c3mini_dio_4MB_M)	1m 19s
Builds (seeed_esp32c3_4MB_S)	1m 11s
Builds (esp32_4MB_V4_S)	46s
Builds (esp32_16MB_V4_S)	52s
Builds (esp32_16MB_V4_M)	57s
Builds (esp32_16MB_V4_M_debug)	1m 12s
Builds (esp32_pico_4MB_V4_S)	47s
Builds (esp8266pro_16MB_S)	1m 1s
Builds (esp8266pro_16MB_M)	1m 12s
Builds (esp01_1MB_S)	45s
Builds (esp32_16MB_M_eth)	59s
Builds (athom_music_esp32_4MB_M)	53s
Builds (adafruit_matrixportal_esp32s3)	1m 6s
Create Release	0s
	39m 56s

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