Bump getrandom to 0.2

[tomtau]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1062 (9ca8a44) into master (c45ea8c) will decrease coverage by 0.0%.
The diff coverage is n/a.

❗ Current head 9ca8a44 differs from pull request most recent head f7f6075. Consider uploading reports for the commit f7f6075 to get more accurate results

@@           Coverage Diff            @@
##           master   #1062     +/-   ##
========================================
- Coverage    62.8%   62.7%   -0.1%     
========================================
  Files         236     236             
  Lines       21218   21218             
========================================
- Hits        13328   13320      -8     
- Misses       7890    7898      +8     

Impacted Files	Coverage Δ
tendermint/src/evidence.rs	21.6% <0.0%> (-3.8%)	⬇️
testgen/src/vote.rs	84.8% <0.0%> (-0.9%)	⬇️
light-client/src/types.rs	38.0% <0.0%> (-0.6%)	⬇️

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[thanethomson]

From the docs:

if the "js" Cargo feature is enabled, this crate will assume that you are building for an environment containing JavaScript, and will call the appropriate methods. Both web browser (main window and Web Workers) and Node.js environments are supported, invoking the methods described above using the wasm-bindgen toolchain.

This feature has no effect on targets other than wasm32-unknown-unknown.

Seems reasonable to enable this feature, thanks!