Add missing migrations

web/migrations/versions/55d2b1a82ba9_.py

+"""empty message
+
+Revision ID: 55d2b1a82ba9
+Revises: 8b2e0d43384a
+Create Date: 2021-04-14 12:10:08.675542
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '55d2b1a82ba9'
+down_revision = '8b2e0d43384a'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('jobs', 'mem_mb')
+    op.drop_column('jobs', 'n_cores')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('jobs', sa.Column('n_cores', sa.INTEGER(), autoincrement=False, nullable=True))
+    op.add_column('jobs', sa.Column('mem_mb', sa.INTEGER(), autoincrement=False, nullable=True))
+    # ### end Alembic commands ###