docs: add stateless usage examples to docstrings

Co-Authored-By: Aaron <AJ> Steers <[email protected]>

Author: devin-ai-integration[bot]

airbyte_cdk/cli/airbyte_cdk/_secrets.py

@@ -8,6 +8,10 @@
     airbyte-cdk secrets fetch --connector-directory /path/to/connector
     airbyte-cdk secrets fetch  # Run from within a connector directory
 
+Usage without pre-installing (stateless):
+    pipx run airbyte-cdk[dev] secrets fetch ...
+    uvx airbyte-cdk[dev] secrets fetch ...
+
 The 'fetch' command retrieves secrets from Google Secret Manager based on connector
 labels and writes them to the connector's `secrets` directory.
 """
@@ -36,6 +40,10 @@ def secrets_cli_group() -> None:
         airbyte-cdk secrets fetch --connector-directory /path/to/connector
         airbyte-cdk secrets fetch  # Run from within a connector directory
 
+    Usage without pre-installing (stateless):
+        pipx run airbyte-cdk[dev] secrets fetch ...
+        uvx airbyte-cdk[dev] secrets fetch ...
+
     The 'fetch' command retrieves secrets from Google Secret Manager based on connector
     labels and writes them to the connector's `secrets` directory.
     """