icu: 57.1 -> 58.2

Firefox requires new version of the icu to build:
```
checking for icu-i18n >= 58.1... Requested 'icu-i18n >= 58.1' but version of icu-i18n is 57.1
configure: error: Library requirements (icu-i18n >= 58.1) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.
```