chore: add saml_session_id property in access token

packages/backend/src/db/migrations/20240430132947_add_saml_session_id_in_access_tokens.js

@@ -0,0 +1,11 @@
+export async function up(knex) {
+  return knex.schema.table('access_tokens', (table) => {
+    table.string('saml_session_id').nullable();
+  });
+}
+
+export async function down(knex) {
+  return knex.schema.table('access_tokens', (table) => {
+    table.dropColumn('saml_session_id');
+  });
+}