fix(jdtls): update root dir (#2693)

multi-module projects first.

Author: nzlov

lua/lspconfig/server_configurations/jdtls.lua

@@ -77,15 +77,15 @@ local function on_language_status(_, result)
 end
 
 local root_files = {
+  -- Multi-module projects
+  { '.git', 'build.gradle', 'build.gradle.kts' },
   -- Single-module projects
   {
     'build.xml', -- Ant
     'pom.xml', -- Maven
     'settings.gradle', -- Gradle
     'settings.gradle.kts', -- Gradle
   },
-  -- Multi-module projects
-  { 'build.gradle', 'build.gradle.kts' },
 }
 
 return {