fix: force UTF8 on yaml parsing

[iBotPeaches]

Our test suite forces UTF8, but userland did not. I experienced this in #4175

[IgorEisberg]

Interesting issue.

<failure message="org.junit.ComparisonFailure: expected:&lt;...les/Andriod/tx_1001_[冰原]1&gt; but was:&lt;...les/Andriod/tx_1001_[冰原]1&gt;" type="org.junit.ComparisonFailure">

DoNotCompressHieroglyphTest.java:

assertEquals("assets/AllAssetBundles/Andriod/tx_1001_冰原1", apkInfo.getDoNotCompress().get(0));

That constant string in hex:

6173736574732F416C6C417373657442756E646C65732F416E6472696F642F74785F313030315FE586B0E58E9F31

But Java compiles that string in DoNotCompressHieroglyphTest.class as non UTF-8:

6173736574732F416C6C417373657442756E646C65732F416E6472696F642F74785F313030315FC3A5E280A0C2B0C3A5C5BDC5B831

Which is: assets/AllAssetBundles/Andriod/tx_1001_冰原1

And this is despite:

tasks.withType<JavaCompile> {
    ...
    options.encoding = "UTF-8"
}

[IgorEisberg]

Looks like tasks.withType<JavaCompile> had to be under subprojects to work properly with a multi-module project.

[iBotPeaches]

weird. Unsure how it worked prior and then broke when it was explicitly mapped as UTF-8.