Don't pass srcs as additional_classpath_entries in kotlin_test #7683

Job	Run time
Get the latest prelude hash	3s
build (ubuntu-22.04, aarch64-unknown-linux-gnu, true)	9m 22s
build (ubuntu-22.04, aarch64-unknown-linux-musl, true)	9m 40s
build (ubuntu-22.04, x86_64-unknown-linux-gnu)	8m 45s
build (ubuntu-22.04, x86_64-unknown-linux-musl, true)	9m 13s
build (macos-13, aarch64-apple-darwin, true)	24m 43s
build (macos-13, x86_64-apple-darwin)	20m 3s
build (windows-2022, x86_64-pc-windows-msvc, true)	18m 19s
Release `latest` tag	35s
Check if there's a release for this half of the month already	4s
Publish buck2.build	3m 15s
Release bi-monthly tag	0s
	1h 44m 2s

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