Update pallet nomination pool to support Block Number Provider #15182

Job	Run time
check-dependency-rules	8s
check-fail-ci	13s
check-markdown	15s
check-readme	3m 22s
check-workspace	17s
preflight / preflight	44s
preflight / ci-versions	1m 12s
check-rust-feature-propagation	2m 27s
check-umbrella	2m 45s
fmt	1m 20s
check-toml-format	1m 36s
test-rust-features	2m 29s
All quick checks passed	1s
	16m 49s

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