feat(sqlite): CI Tests for Alembic and SQLite (#3358)

Co-authored-by: Matt Zhou <mattzh1314@gmail.com>

alembic/versions/341068089f14_add_preserve_on_migration_to_block.py

@@ -11,6 +11,7 @@ from typing import Sequence, Union
 import sqlalchemy as sa
 
 from alembic import op
+from letta.settings import settings
 
 # revision identifiers, used by Alembic.
 revision: str = "341068089f14"
@@ -20,12 +21,20 @@ depends_on: Union[str, Sequence[str], None] = None
 
 
 def upgrade() -> None:
+    # Skip this migration for SQLite
+    if not settings.letta_pg_uri_no_default:
+        return
+
     # ### commands auto generated by Alembic - please adjust! ###
     op.add_column("block", sa.Column("preserve_on_migration", sa.Boolean(), nullable=True))
     # ### end Alembic commands ###
 
 
 def downgrade() -> None:
+    # Skip this migration for SQLite
+    if not settings.letta_pg_uri_no_default:
+        return
+
     # ### commands auto generated by Alembic - please adjust! ###
     op.drop_column("block", "preserve_on_migration")
     # ### end Alembic commands ###