feat: storage plugin list objects (#6723)

* feat(proto): add storage plugin proto definitions for session recording recovery

Co-authored-by: Damian Debkowski <damian.debkowski@hashicorp.com>

Co-authored-by: Ryan Derr <ryan.derr@hashicorp.com>

* feat(gen): add generated storage plugin code for session recording recovery

Co-authored-by: Damian Debkowski <damian.debkowski@hashicorp.com>

Co-authored-by: Manjeet Singh <manjeet.singh@hashicorp.com>

* feat(plugin): add plugin loopback support for session recording recovery

Co-authored-by: Ryan Derr <ryan.derr@hashicorp.com>

Co-authored-by: aditya2548 <aditya25dec2000@gmail.com>

---------

Co-authored-by: Ryan Derr <ryan.derr@hashicorp.com>
Co-authored-by: Manjeet Singh <manjeet.singh@hashicorp.com>
Co-authored-by: aditya2548 <aditya25dec2000@gmail.com>

internal/plugin/loopback/loopback.go

@@ -113,6 +113,7 @@ func NewLoopbackPlugin(opt ...TestOption) (*LoopbackPlugin, error) {
 	ret.GetObjectFn = ret.getObject
 	ret.PutObjectFn = ret.putObject
 	ret.DeleteObjectsFn = ret.deleteObjects
+	ret.ListObjectsFn = ret.listObjects
 	if len(opts.withMockBuckets) > 0 {
 		ret.buckets = opts.withMockBuckets
 	}