Support 8.10.6

[hojberg]

Can we add support for 8.10.6 https://www.stackage.org/lts-18.8? (Happy to help, but don't know where to look)

[jneira]

@hojberg hi! thanks for note it, we already are working on it: haskell/haskell-language-server#2109
The next release will have it. In the meanwhile you could build haskell-language-server from source.

[jneira]

With the new hls release we have support for 8.10.6 and 8.10.7!