feat: add basic redpanda rising wave setup

Signed-off-by: kjuulh <contact@kjuulh.io>

templates/create_sources.sql

@@ -0,0 +1,13 @@
+-- impression_timestamp: The time when the ad was shown.
+-- click_timestamp: The time when the ad was clicked.
+create source ad_source (
+    user_id bigint,
+    ad_id bigint,
+    click_timestamp timestamptz,
+    impression_timestamp timestamptz
+) with (
+    connector = 'kafka',
+    topic = 'ad_clicks',
+    properties.bootstrap.server = 'message_queue:29092',
+    scan.startup.mode = 'earliest'
+) FORMAT PLAIN ENCODE JSON;