CreateValidConfigMapFilter processes configmap volume https://github.com/ossrs/srs/issues/1635.

FilterSupportReloadActionConfigSpecs filters the provided ConfigSpecMeta slices based on the reload action type and volume mount configuration.

CfgManagerBuildParams is the params for building config manager sidecar.

DynamicParamUpdater is designed to adapt to the dapper implementation.

ActionCallback is a callback function for testcase.