Request Limiter listener config opt-out (#25098)

This commit introduces a new listener config option to allow disabling the request limiter per-listener.

command/server/config_test_helpers.go

@@ -611,6 +611,7 @@ func testLoadConfigFile_json(t *testing.T) {
 					Type:                  "tcp",
 					Address:               "127.0.0.1:443",
 					CustomResponseHeaders: DefaultCustomHeaders,
+					DisableRequestLimiter: false,
 				},
 			},
 
@@ -789,8 +790,9 @@ func testConfig_Sanitized(t *testing.T) {
 		"listeners": []interface{}{
 			map[string]interface{}{
 				"config": map[string]interface{}{
-					"address":          "127.0.0.1:443",
-					"chroot_namespace": "admin/",
+					"address":                 "127.0.0.1:443",
+					"chroot_namespace":        "admin/",
+					"disable_request_limiter": false,
 				},
 				"type": configutil.TCP,
 			},
@@ -889,6 +891,7 @@ listener "tcp" {
   redact_addresses = true
   redact_cluster_name = true
   redact_version = true
+  disable_request_limiter = true
 }
 listener "unix" {
   address = "/var/run/vault.sock"
@@ -951,6 +954,7 @@ listener "unix" {
 					RedactAddresses:       true,
 					RedactClusterName:     true,
 					RedactVersion:         true,
+					DisableRequestLimiter: true,
 				},
 				{
 					Type:              "unix",

command/server/test-fixtures/config3.hcl

@@ -13,6 +13,7 @@ cluster_addr = "top_level_cluster_addr"
 listener "tcp" {
   address = "127.0.0.1:443"
   chroot_namespace="admin/"
+  disable_request_limiter = false
 }
 
 backend "consul" {