Auto merge of #5672 - phansch:regression-test-env, r=yaahc

Add regression test for `string_lit_as_bytes` issue

Closes #5619

Before the fix in https://github.com/rust-lang/rust/pull/72637, `string_lit_as_bytes` was incorrectly triggering on the `env!` macro. With the fix merged, this test makes sure that the lint is not triggering anymore.

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