fix: update Redis parameter group for new engine (#1217)

Author: bryan-robitaille

aws/redis/redis.tf

@@ -12,7 +12,7 @@ resource "aws_elasticache_replication_group" "redis" {
   node_type                  = "cache.t2.micro"
   num_cache_clusters         = var.env == "development" ? 1 : 2
   engine_version             = "7.1"
-  parameter_group_name       = "default.redis6.x"
+  parameter_group_name       = "default.redis7"
   port                       = 6379
   multi_az_enabled           = var.env != "development"
   subnet_group_name          = aws_elasticache_subnet_group.redis.name
@@ -22,4 +22,4 @@ resource "aws_elasticache_replication_group" "redis" {
 resource "aws_elasticache_subnet_group" "redis" {
   name       = "redis-subnet-group"
   subnet_ids = var.private_subnet_ids
-}
+}