fix components docs test (#27560)

## Summary

#27501 introduced a change where we must pass the working directory to
`dagster assets materialize` - adds that to our dg docs tests

examples/docs_beta_snippets/docs_beta_snippets_tests/snippet_checks/guides/components/test_components_docs.py

@@ -216,7 +216,7 @@ def next_snip_no():
     """,
             )
             _run_command(
-                "dagster asset materialize --select '*' -m jaffle_platform.definitions"
+                "dagster asset materialize --select '*' -d . -m jaffle_platform.definitions"
             )
             run_command_and_snippet_output(
                 cmd='duckdb /tmp/jaffle_platform.duckdb -c "SELECT * FROM raw_customers LIMIT 5;"',
@@ -291,7 +291,7 @@ def next_snip_no():
 
             # Run dbt, check works
             _run_command(
-                "DAGSTER_IS_DEV_CLI=1 dagster asset materialize --select '*' -m jaffle_platform.definitions"
+                "DAGSTER_IS_DEV_CLI=1 dagster asset materialize --select '*' -d . -m jaffle_platform.definitions"
             )
             run_command_and_snippet_output(
                 cmd='duckdb /tmp/jaffle_platform.duckdb -c "SELECT * FROM orders LIMIT 5;"',