feat: Use postgres as a queue

We've been keen to try this for a while as it means we can remove redis as a
dependency, which makes Immich easier to setup and run.

This replaces bullmq with a bespoke postgres queue. Jobs in the queue are
processed either immediately via triggers and notifications, or eventually if a
notification is missed.

docker/prometheus.yml

@@ -1,12 +1,14 @@
 global:
-  scrape_interval:     15s
-  evaluation_interval: 15s
+  scrape_interval: 3s
+  evaluation_interval: 3s
 
 scrape_configs:
   - job_name: immich_api
+    scrape_interval: 3s
     static_configs:
-      - targets: ['immich-server:8081']
+      - targets: ["immich-server:8081"]
 
   - job_name: immich_microservices
+    scrape_interval:
     static_configs:
-      - targets: ['immich-server:8082']
+      - targets: ["immich-server:8082"]