hash-cache-tool: Use ahash::HashMap (#2420) #1

Job	Run time
check	5m 57s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	20m 28s
cargo-test-sbf (token/program)	9m 52s
test (single-pool/cli, single-pool/program)	20m 25s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	14m 55s
test (token-upgrade/cli, token-upgrade/program)	19m 7s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	9m 45s
cargo-test-sbf (token-upgrade/program)	9m 21s
cargo-test-sbf (feature-proposal/program)	8m 29s
cargo-test-sbf (governance/addin-mock/program, governance/program)	12m 24s
cargo-test-sbf (memo/program)	7m 59s
cargo-test-sbf (name-service/program)	8m 13s
cargo-test-sbf (stake-pool/program)	11m 32s
cargo-test-sbf (single-pool/program)	10m 4s
	2h 48m 31s

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