fix(test): allow write access to config file in Docker tests

Connectors with config migration (e.g., OAuth token refresh) need write
access to the config file during tests. This change:

1. Updates temp config file permissions from 0o444 (read-only) to 0o666
   (read-write) in scenario.py
2. Adds explicit :rw flag to Docker volume mounts in docker_base.py

This fixes PermissionError when testing connectors that use
_migrate_and_transform_config to persist config changes.

Co-Authored-By: aldo.gonzalez@airbyte.io <aldo.gonzalez@airbyte.io>

Author: devin-ai-integration[bot]

airbyte_cdk/test/models/scenario.py

@@ -143,9 +143,10 @@ def with_temp_config_file(
         ) as temp_file:
             temp_file.write(json.dumps(config))
             temp_file.flush()
-            # Allow the file to be read by other processes
+            # Allow the file to be read and written by other processes
+            # Write access is needed for connectors with config migration (e.g., OAuth token refresh)
             temp_path = Path(temp_file.name)
-            temp_path.chmod(temp_path.stat().st_mode | 0o444)
+            temp_path.chmod(temp_path.stat().st_mode | 0o666)
             yield temp_path
 
         # attempt cleanup, ignore errors

airbyte_cdk/test/standard_tests/docker_base.py

@@ -243,7 +243,7 @@ def test_docker_image_build_and_check(
                     "run",
                     "--rm",
                     "-v",
-                    f"{temp_config_file}:{container_config_path}",
+                    f"{temp_config_file}:{container_config_path}:rw",
                     connector_image,
                     "check",
                     "--config",
@@ -336,7 +336,7 @@ def test_docker_image_build_and_read(
                     "run",
                     "--rm",
                     "-v",
-                    f"{temp_config_file}:{container_config_path}",
+                    f"{temp_config_file}:{container_config_path}:rw",
                     connector_image,
                     "discover",
                     "--config",
@@ -393,7 +393,7 @@ def test_docker_image_build_and_read(
                     "run",
                     "--rm",
                     "-v",
-                    f"{temp_config_file}:{container_config_path}",
+                    f"{temp_config_file}:{container_config_path}:rw",
                     "-v",
                     f"{configured_catalog_path}:{container_catalog_path}",
                     connector_image,