Run SQLx migrations on startup

migrations/20240101000005_create_chat_donate_notifications.sql

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+-- Create chat_donate_notifications table
+CREATE TABLE IF NOT EXISTS chat_donate_notifications (
+    id BIGSERIAL PRIMARY KEY,
+    chat_id BIGINT NOT NULL UNIQUE,
+    sended TIMESTAMP WITHOUT TIME ZONE NOT NULL
+);
+
+-- Create unique index on chat_id (if not exists from UNIQUE constraint)
+CREATE UNIQUE INDEX IF NOT EXISTS chat_donate_notifications_chat_id_key ON chat_donate_notifications(chat_id);