retry plugins: rename existing plugins to match extension name (#4887)

Signed-off-by: Snow Pettersen <snowp@squareup.com>

Mirrored from https://github.com/envoyproxy/envoy @ 77c59b3e76fcced7f327da3873eb96703eaa49c8

envoy/config/retry/previous_priorities/BUILD

@@ -3,8 +3,8 @@ licenses(["notice"])  # Apache 2
 load("//bazel:api_build_system.bzl", "api_proto_library_internal")
 
 api_proto_library_internal(
-    name = "other_priority",
-    srcs = ["other_priority_config.proto"],
+    name = "previous_priorities",
+    srcs = ["previous_priorities_config.proto"],
     deps = [
         "//envoy/api/v2/core:base",
     ],

envoy/config/retry/previous_priorities/previous_priorities_config.proto

@@ -1,6 +1,6 @@
 syntax = "proto3";
 
-package envoy.config.retry.other_priority;
+package envoy.config.retry.previous_priorities;
 
 // A retry host selector that attempts to spread retries between priorities, even if certain
 // priorities would not normally be attempted due to higher priorities being available.
@@ -26,7 +26,7 @@ package envoy.config.retry.other_priority;
 //
 // Using this PriorityFilter requires rebuilding the priority load, which runs in O(# of
 // priorities), which might incur significant overhead for clusters with many priorities.
-message OtherPriorityConfig {
+message PreviousPrioritiesConfig {
   // How often the priority load should be updated based on previously attempted priorities. Useful
   // to allow each priorities to receive more than one request before being excluded or to reduce
   // the number of times that the priority load has to be recomputed.