namada/vm: disable floats in wasm #8906

Job	Run time
build-wasm (ubuntu-latest, v2, 2.4.0)	4m 27s
namada-release (ubuntu-latest, 2.4.0, ABCI Release build)	9m 11s
test-unit (ubuntu-latest, nightly-2024-02-10, 2.4.0, ABCI)	21m 40s
test-wasm (ubuntu-latest, v2, nightly-2024-02-10, 2.4.0)	8m 3s
test-integration (ubuntu-latest, nightly-2024-02-10, 2.4.0, ABCI)	16m 18s
run-benchmarks (ubuntu-latest, nightly-2024-02-10, 2.4.0, ABCI)	31m 19s
upload-wasm (ubuntu-latest, v2, nightly-2024-02-10, 2.4.0)	20s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 0)	22m 45s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 1)	12m 21s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 2)	9m 1s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 3)	26m 27s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 4)	17m 48s
namada-e2e (ubuntu-latest, nightly-2024-02-10, 2.4.0, 0.37.2, 5)	21m 52s
	3h 21m 32s

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