Bumped version to 3.4.0 #362

Job	Run time
arduino:avr:uno - test compiling examples	37s
arduino:avr:leonardo - test compiling examples	38s
arduino:avr:mega - test compiling examples	35s
arduino:megaavr:nona4809:mode=off - test compiling examples	32s
MegaCoreX:megaavr:4808:pinout=32pin_standard,clock=internal_16MHz - test compiling examples	30s
arduino:sam:arduino_due_x - test compiling examples	37s
arduino:samd:arduino_zero_native - test compiling examples	58s
arduino:mbed:nano33ble - test compiling examples	2m 20s
arduino:mbed_rp2040:pico - test compiling examples	2m 18s
rp2040:rp2040:arduino_nano_connect - test compiling examples	1m 37s
esp8266:esp8266:huzzah:eesz=4M3M,xtal=80 - test compiling examples	1m 46s
esp32:esp32:featheresp32:FlashFreq=80 - test compiling examples	3m 0s
STMicroelectronics:stm32:GenF1:pnum=BLUEPILL_F103C8 - test compiling examples	3m 39s
SparkFun:apollo3:sfe_artemis_nano - test compiling examples	3m 20s
	22m 27s

Provide feedback