feat: builtin support for editing files over ssh (#27)

tests/regression_spec.lua

@@ -15,14 +15,14 @@ a.describe("regression tests", function()
     vim.cmd.wincmd({ args = { "p" } })
     assert.equals("markdown", vim.bo.filetype)
     vim.cmd.edit({ args = { "%:p:h" } })
-    a.util.sleep(10)
+    test_util.wait_for_autocmd("BufReadPost")
     assert.equals("oil", vim.bo.filetype)
   end)
 
   -- https://github.com/stevearc/oil.nvim/issues/37
   a.it("places the cursor on correct entry when opening on file", function()
     vim.cmd.edit({ args = { "." } })
-    a.util.sleep(10)
+    test_util.wait_for_autocmd("BufReadPost")
     local entry = oil.get_cursor_entry()
     assert.not_equals("README.md", entry and entry.name)
     vim.cmd.edit({ args = { "README.md" } })