Use new clojure lsp server info command

[bpringe]

What has Changed?

• Calls the clojure/serverInfo/raw clojure-lsp command instead of the now deprecated server-info command. Uses the raw version instead of the new version of the command that displays an information message because the server info is now too large to fit in the information message.
• Prints the information to the Calva says window

Fixes #1211

My Calva PR Checklist

I have:

• Read How to Contribute.
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• Made sure I have changed the PR base branch, so that it is not published. (Sorry for the nagging.)
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• Figured if anything about the fix warrants tests on Mac/Linux/Windows/Remote/Whatever, and either tested it there if so, or mentioned it in the PR.
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The Calva Team PR Checklist:

Before merging we (at least one of us) have:

• Made sure the PR is directed at the dev branch (unless reasons).
• Figured if anything about the fix warrants tests on Mac/Linux/Windows/Remote/Whatever, and tested it there if so.
• Read the source changes.
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• Tested the VSIX built from the PR (well, if this is a PR that changes the source code.)
  • Tested the particular change
  • Figured if the change might have some side effects and tested those as well.
  • Smoke tested the extension as such.
• If need be, had a chat within the team about particular changes.

Ping @PEZ, @bpringe

[bpringe]

@pratik97 We need to use this raw server info command to display the info to the user now anyway, so I'll do that on this branch, and then you can use it in your code.

There seems to be an issue with clojure-lsp, which is discussed here: clojure-lsp/clojure-lsp#472

[bpringe]

Update: There was no issue with clojure-lsp. I was calling the method as a command instead of as a custom LSP method like it is.