Re-exported symbol hover ghcide test is flaky on Windows

[July541]

Recently windows tests are unstable due to https://github.com/haskell/haskell-language-server/blob/master/ghcide/test/exe/Main.hs#L4442

It's a test for the definition of reexported symbol. I've checked that both the expected result and the real result are all acceptable for goto definition behavior.

Some observations:

1. It failed most time.
2. Retry has a chance to pass the test.

Known affected prs:

1. Don't use typecheck rule for non FOIs in refine imports plugin #2995
2. Log response errors returned from Plugins #2988
3. Remove some partial functions from Shake.hs #2986
4. Turn HLS-wrapper into an LSP Server #2960