Fix WASM build

[sffc]

Fixes #607

I downgraded the rand crate because the new version does not build on WASM. I filed rust-random/rand#1110 for fixing the issue upstream.

EDIT: I fixed the issue by passing the "js" feature to getrandom, as suggested in the above thread.

[jira-pull-request-webhook]

Notice: the branch changed across the force-push!

• utils/litemap/Cargo.toml is no longer changed in the branch

View Diff Across Force-Push

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[coveralls]

Pull Request Test Coverage Report for Build af52a8ff9a66bf8bff6b44949e0e3f066c34791b-PR-608

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 96 unchanged lines in 6 files lost coverage.
• Overall coverage increased (+0.2%) to 72.586%

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Files with Coverage Reduction	New Missed Lines	%
components/provider_cldr/src/transform/likelysubtags.rs	5	84.91%
components/provider_cldr/src/transform/plurals.rs	6	71.3%
components/provider_cldr/src/transform/numbers/mod.rs	7	79.83%
components/provider_cldr/src/support.rs	16	11.76%
components/provider_cldr/src/transform/mod.rs	19	11.43%
components/provider_cldr/src/transform/dates.rs	43	72.8%

Totals
Change from base Build 2c75da6e082dbe16d9ce9a5c513d30d9f92991e1:	0.2%
Covered Lines:	6908
Relevant Lines:	9517

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💛 - Coveralls

[sffc]

I'm going to close this as subsumed by #609.