Add optimize() call to snapshot materialization

Signed-off-by: aarushisingh04 <aarushi07.singh@gmail.com>

Author: aarushisingh04

CHANGELOG.md

@@ -6,6 +6,7 @@
   gated behind the `use_concurrent_microbatch` behavior flag (default: `false`).
   Opt in via `flags: {use_concurrent_microbatch: true}` in `dbt_project.yml`
   ([#914](https://github.com/databricks/dbt-databricks/issues/914))
+- Run `optimize` on snapshots when `liquid_clustered_by`, `zorder`, or `auto_liquid_cluster` config is set, matching existing behavior for tables and incremental models ([#1335](https://github.com/databricks/dbt-databricks/issues/1335))
 
 ### Fixes
 

dbt/include/databricks/macros/materializations/snapshot.sql

@@ -124,6 +124,8 @@
 
   {% do persist_constraints(target_relation, model) %}
 
+  {% do optimize(target_relation) %}
+
   {{ run_hooks(post_hooks, inside_transaction=False) }}
 
   {{ return({'relations': [target_relation]}) }}