chore: Add migration file path in otel collector config (#628)

* chore: Add migration file path in otel collector config

* Update otel-collector-config.yaml

deploy/docker/clickhouse-setup/otel-collector-config.yaml

@@ -45,6 +45,7 @@ extensions:
 exporters:
   clickhouse:
     datasource: tcp://clickhouse:9000
+    migrations: /migrations
   clickhousemetricswrite:
     endpoint: tcp://clickhouse:9000/?database=signoz_metrics
     resource_to_telemetry_conversion:
@@ -64,4 +65,4 @@ service:
       exporters: [clickhousemetricswrite]
     metrics/spanmetrics:
       receivers: [otlp/spanmetrics]
-      exporters: [prometheus]
+      exporters: [prometheus]