Merge database migration heads

- Added a new migration script to merge two branches.
- Defined revision identifiers for Alembic.
- Included empty upgrade and downgrade functions.

src/infrastructure/database/migrations/versions/2025_02_27_11_56-merge_heads.py

@@ -0,0 +1,21 @@
+"""Merge heads after prolific branching
+
+Revision ID: a620e11dda13
+Revises: 5af378151328, 11b5cd083450
+Create Date: 2025-02-27 11:56:06.642160
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = "a620e11dda13"
+down_revision = ("5af378151328", "11b5cd083450")
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    pass
+
+
+def downgrade() -> None:
+    pass