feat: add generics to filter, transaction, and pub_sub. #1943

Job	Run time
cfg-check	22s
feature-checks	2m 21s
docs	49s
clippy	27s
doctest	59s
fmt	12s
no-std	13s
test stable --no-default-features	1m 12s
wasm-unknown	32s
wasm-wasi	1m 2s
test stable	1m 19s
test stable --all-features	2m 8s
test nightly --no-default-features	1m 11s
test nightly	1m 17s
test nightly --all-features	1m 52s
test 1.76 --no-default-features	31s
test 1.76	37s
	17m 4s

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