apollo-language-server@1.26.9 breaks codegen on Windows

**Intended outcome:**

Operations are detected in the project like before.

**Actual outcome:**

After updating `apollo-language-server` (sub-dep of `apollo`) from 1.26.8 to 1.26.9, on Windows the following error message appears:

```
× Generating query files with 'typescript' target
→ No operations or fragments found to generate code for.
Error: No operations or fragments found to generate code for.
```

**How to reproduce the issue:**

- Install `apollo@2.33.11` and `apollo-language-server@1.26.9`
- Try a codegen
- The mentioned error will appear

**Versions**

apollo@2.33.11
apollo-language-server@1.26.9

Thanks in advance!

Reproduce the failure with apollo@2.33.11 and apollo-language-server@1.26.9 on Windows, then compare it with 1.26.8 while tracing the TypeScript-target codegen entry point. Done means the existing operations are detected and TypeScript query files are generated without the reported error.

Written by the indexing model from the issue text.