Change field to pointer so it will be parsed as nil (#15831)

api/config_entry.go

@@ -295,7 +295,7 @@ type ProxyConfigEntry struct {
 	Config           map[string]interface{}  `json:",omitempty"`
 	MeshGateway      MeshGatewayConfig       `json:",omitempty" alias:"mesh_gateway"`
 	Expose           ExposeConfig            `json:",omitempty"`
-	AccessLogs       AccessLogsConfig        `json:",omitempty"`
+	AccessLogs       *AccessLogsConfig       `json:",omitempty"`
 
 	Meta        map[string]string `json:",omitempty"`
 	CreateIndex uint64

api/config_entry_test.go

@@ -433,7 +433,7 @@ func TestDecodeConfigEntry(t *testing.T) {
 					OutboundListenerPort: 808,
 					DialedDirectly:       true,
 				},
-				AccessLogs: AccessLogsConfig{
+				AccessLogs: &AccessLogsConfig{
 					Enabled:             true,
 					DisableListenerLogs: true,
 					Type:                FileLogSinkType,