Drop user_id column in user_metrics

Author: mpgxvii

src/main/resources/db/changelog/changes/00000000000002_update_schema-20231020184827_changelog.yml

@@ -11,4 +11,9 @@ databaseChangeLog:
             initiallyDeferred: false
             referencedColumnNames: id
             referencedTableName: users
-            validate: true
+            validate: true
+        - dropColumn:
+            columns:
+              - column:
+                  name: user_id
+            tableName: user_metrics