[Feature] Allow for custom path to a language server binary (#1043)

lua/lang/ruby.lua

@@ -14,6 +14,9 @@ M.config = function()
       stdin = true,
     },
     linters = { "ruby" },
+    lsp = {
+      path = DATA_PATH .. "/lspinstall/ruby/solargraph/solargraph",
+    },
   }
 end
 
@@ -48,7 +51,7 @@ M.lsp = function()
   if not require("lv-utils").check_lsp_client_active "solargraph" then
     -- If you are using rvm, make sure to change below configuration
     require("lspconfig").solargraph.setup {
-      cmd = { DATA_PATH .. "/lspinstall/ruby/solargraph/solargraph", "stdio" },
+      cmd = { O.lang.ruby.lsp.path, "stdio" },
       on_attach = require("lsp").common_on_attach,
       handlers = {
         ["textDocument/publishDiagnostics"] = vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {