move gotd fork into repo. (#111)

- update to latest telegram layer
- remove some references to fields in tg.Entities that don't exist in
the schema
- originally added here:
https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e
  - referenced here
-
https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3
-
https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e

pkg/gotd/cmd/connclose/README.md

@@ -0,0 +1,56 @@
+This project is an attempt to reproduce connection timeout that causes gotd to hang.
+
+> [!WARNING]
+> Currently I'm unable to reproduce the issue.
+
+Referenced issue: https://github.com/gotd/td/issues/1030
+
+Dependencies:
+- docker
+- kind
+- helm
+- cilium cli
+- go
+
+## Preparation
+
+```bash
+cp secret.example.yml secret.yml
+```
+
+Edit `secret.yml` and put there your bot and application credentials.
+
+## Running
+
+Start cluster:
+
+```bash
+make up
+```
+
+Deny connections to telegram:
+```bash
+make deny
+```
+
+Update binary
+```bash
+make update
+```
+
+Restore connections
+```bash
+make allow
+```
+
+## Logs
+
+```bash
+make logs
+```
+
+## Cleanup
+
+```bash
+make down
+```