deps, heapless 0.8 #609

Job	Run time
documentation	18s
audit	8s
compile (stable, thumbv7em-none-eabihf)	52s
examples (mqtt)	55s
compile (1.65.0, thumbv7em-none-eabihf)	3m 8s
examples (readback)	40s
style	27s
test (stable)	3m 37s
test (stable, --all-features)	48s
test (stable, --no-default-features)	36s
test (stable, --no-default-features --features json-core)	31s
test (1.65.0)	2m 49s
test (1.65.0, --all-features)	2m 48s
test (1.65.0, --no-default-features)	2m 39s
test (1.65.0, --no-default-features --features json-core)	2m 35s
	22m 51s

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