Query Sync: we don't read systemIncludes in `visitProjectDefinition`

[tpasternak]

Description of the bug:

It is unclear what are the consequences of that https://github.com/bazelbuild/intellij/blob/9cebd402f060fa7e74ec0bac6d65fb8f0f8aad9c/querysync/java/com/google/idea/blaze/qsync/project/SnapshotSerializer.java#L74

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What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

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Which Intellij IDE are you using? Please provide the specific version.

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What programming languages and tools are you using? Please provide specific versions.

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What Bazel plugin version are you using?

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Have you found anything relevant by searching the web?

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[tpasternak-engflow]

Seems to be fixed in the upstream project https://cs.android.com/android-studio/platform/tools/adt/idea/+/9688532e0fafbb7abeeb0d947c096ef304de64cf