Refactor WASM host references #9079

Job	Run time
build-wasm (ubuntu-latest, v2, 2.4.0)	4m 39s
namada-release (ubuntu-latest, 2.4.0, ABCI Release build)	9m 1s
test-wasm (ubuntu-latest, v2, nightly-2024-02-10, 2.4.0)	7m 53s
test-unit (ubuntu-latest, nightly-2024-02-10, 2.4.0, ABCI)	20m 53s
test-integration (ubuntu-latest, nightly-2024-02-10, 2.4.0, ABCI)	14m 0s
run-benchmarks (ubuntu-latest, nightly-2024-02-10, 2.4.0, ABCI)	31m 17s
upload-wasm (ubuntu-latest, v2, nightly-2024-02-10, 2.4.0)	17s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 0)	21m 25s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 1)	11m 42s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 2)	7m 4s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 3)	28m 3s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 4)	17m 42s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 5)	24m 17s
	3h 18m 13s

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