Drive letter is always uppercase

script/file-uri.lua

@@ -78,7 +78,7 @@ function m.decode(uri)
     if scheme == 'file' and #authority > 0 and #path > 1 then
         value = '//' .. authority .. path
     elseif path:match '/%a:' then
-        value = path:sub(2, 2) .. path:sub(3)
+        value = path:sub(2, 2):upper() .. path:sub(3)
     else
         value = path
     end

test/crossfile/completion.lua

@@ -392,12 +392,12 @@ config.set('Lua.runtime.path', originRuntimePath)
 
 local originRuntimePath = config.get 'Lua.runtime.path'
 config.set('Lua.runtime.path', {
-    'd:/?/1.lua',
+    'D:/?/1.lua',
 })
 
 TEST {
     {
-        path = 'd:/xxxx/1.lua',
+        path = 'D:/xxxx/1.lua',
         content = '',
     },
     {