Fix `ARDUINOJSON_BIN2ALPHA_0110()` #750

Job	Run time
Lint	20s
GCC (5)	3m 46s
GCC (6)	3m 25s
GCC (7, -fsanitize=leak -fno-sanitize-recover=all)	3m 34s
GCC (8, -fsanitize=undefined -fno-sanitize-recover=all)	5m 15s
GCC (9, -fsanitize=address -fno-sanitize-recover=all)	3m 52s
GCC (10, -funsigned-char)	4m 27s
GCC (11)	4m 38s
Clang (3.8, -stdlib=libc++)	4m 8s
Clang (3.9, -stdlib=libc++)	4m 35s
Clang (4.0, -stdlib=libc++)	3m 23s
Clang (5.0)	3m 3s
Clang (6.0)	3m 24s
Clang (7)	3m 20s
Clang (8, -fsanitize=leak -fno-sanitize-recover=all)	3m 22s
Clang (9, -fsanitize=undefined -fno-sanitize-recover=all)	3m 58s
Clang (10, -fsanitize=address -fno-sanitize-recover=all)	4m 56s
XCode (11.7)	4m 16s
XCode (12.4)	4m 59s
XCode (13.2.1)	5m 22s
Clang-Tidy	5m 2s
GCC for ARM processor	3m 54s
Amalgamate ArduinoJson.h	16s
Amalgamate ArduinoJson.hpp	7s
Arduino (arduino:avr, arduino:avr:uno)	36s
Arduino (arduino:samd, arduino:samd:mkr1000)	1m 21s
Test configuration on Windows	59s
CodeQL	11m 54s
Test configuration on Linux	46s
Coverage	2m 27s
ESP-IDF	2m 52s
Particle (argon)	29s
Valgrind	3m 41s
PlatformIO (atmelavr, leonardo, SD, Ethernet, avr)	36s
PlatformIO (espressif8266, huzzah, esp8266)	4m 13s
PlatformIO (espressif32, esp32dev, Ethernet, esp8266)	2m 8s
PlatformIO (atmelsam, mkr1000USB, SD, Ethernet, esp8266)	1m 18s
PlatformIO (teensy, teensy31, esp8266)	1m 32s
PlatformIO (ststm32, adafruit_feather_f405, SD, Ethernet, esp8266)	3m 16s
PlatformIO (nordicnrf52, adafruit_feather_nrf52840, SD, Ethernet, esp8266)	2m 19s
	2h 7m 49s

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