fix: date fixes; go middleware refactors; regex fixes; etc (#368)

fix: format of date when MR was closed or merged (#367)
refactor: Add Payload Validators + Middleware In Go Code (#366)
fix: Add better checks for leaving comments (#369)
fix: regex support for http credentials embedded in remote url (#372)
fix: Comment on single line selects two lines (#371)

This is a #PATCH release.

doc/gitlab.nvim.txt

@@ -152,7 +152,12 @@ you call this function with no values the defaults will be used:
       port = nil, -- The port of the Go server, which runs in the background, if omitted or `nil` the port will be chosen automatically
       log_path = vim.fn.stdpath("cache") .. "/gitlab.nvim.log", -- Log path for the Go server
       config_path = nil, -- Custom path for `.gitlab.nvim` file, please read the "Connecting to Gitlab" section
-      debug = { go_request = false, go_response = false }, -- Which values to log
+      debug = {
+          request = false, -- Requests to/from Go server
+          response = false,
+          gitlab_request = false, -- Requests to/from Gitlab
+          gitlab_response = false,
+      },
       attachment_dir = nil, -- The local directory for files (see the "summary" section)
       reviewer_settings = {
         jump_with_no_diagnostics = false, -- Jump to last position in discussion tree if true, otherwise stay in reviewer and show warning.