Fix initialize lsp (getattr can't work for dict)

[codecov[bot]]

Codecov Report

Base: 92.04% // Head: 92.04% // No change to project coverage :thumbsup:

Coverage data is based on head (5b5ffe7) compared to base (bff7990). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #59 +/- ## ======================================= Coverage 92.04% 92.04% ======================================= Files 3 3 Lines 327 327 ======================================= Hits 301 301 Misses 26 26 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `92.04% <100.00%> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Regen#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/regen100/cmake-language-server/pull/59?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Regen) | Coverage Δ | | |---|---|---| | [src/cmake\_language\_server/server.py](https://codecov.io/gh/regen100/cmake-language-server/pull/59/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Regen#diff-c3JjL2NtYWtlX2xhbmd1YWdlX3NlcnZlci9zZXJ2ZXIucHk=) | `87.28% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Regen). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Regen)

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