merge: #3779

3779: feat: make cache eviction configurable in init container r=sprutton1 a=sprutton1

Change the cache eviction to a setting we can configure using parameter store

Co-authored-by: Scott Prutton <scott@systeminit.com>

component/init/configs/service.toml

@@ -52,4 +52,4 @@ $SI_NATS_CREDS
 url = "$SI_NATS_URL"
 
 [layer_db_config.memory_cache_config]
-seconds_to_idle = 900
+seconds_to_idle = "$SI_CACHE_EVICTION_SECONDS_TO_IDLE"