Bump migrate/migrate from v4.16.2 to v4.18.3

Bumps migrate/migrate from v4.16.2 to v4.18.3.

---
updated-dependencies:
- dependency-name: migrate/migrate
  dependency-version: v4.18.3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docker-compose.yml

@@ -23,7 +23,7 @@ services:
       - /var/lib/postgresql/data:rw # Necessary to speed up integration tests.
 
   migrate-reference:
-    image: migrate/migrate:v4.16.2
+    image: migrate/migrate:v4.18.3
     command: >
       -source 'file:///migrations'
       -database 'postgresql://postgres:postgres@postgres:5432/reference?sslmode=disable' up
@@ -34,7 +34,7 @@ services:
       - ./migrations:/migrations:ro
 
   migrate-transaction:
-    image: migrate/migrate:v4.16.2
+    image: migrate/migrate:v4.18.3
     command: >
       -source 'file:///migrations'
       -database 'postgresql://postgres:postgres@postgres:5432/transaction?sslmode=disable' up