* NET-6946 - Replace usage of deprecated Envoy field envoy.config.route.v3.HeaderMatcher.safe_regex_match
* removing unrelated changes
* update golden files
* do not set engine type
`property-override` is an extension that allows for arbitrarily
patching Envoy resources based on resource matching filters. Patch
operations resemble a subset of the JSON Patch spec with minor
differences to facilitate patching pre-defined (protobuf) schemas.
See Envoy Extension product documentation for more details.
Co-authored-by: Eric Haberkorn <eric.haberkorn@hashicorp.com>
Co-authored-by: Kyle Havlovitz <kyle@hashicorp.com>