DEV: Update redis gem to 4.8.0 (#19350)

Gemfile.lock

@@ -341,7 +341,7 @@ GEM
       msgpack (>= 0.4.3)
       optimist (>= 3.0.0)
     rchardet (1.8.0)
-    redis (4.7.1)
+    redis (4.8.0)
     redis-namespace (1.9.0)
       redis (>= 4)
     regexp_parser (2.6.1)

lib/discourse_redis.rb

@@ -50,8 +50,8 @@ class DiscourseRedis
    :hdel, :hexists, :hget, :hgetall, :hincrby, :hincrbyfloat, :hkeys, :hlen, :hmget, :hmset, :hset, :hsetnx, :hvals, :incr,
    :incrby, :incrbyfloat, :lindex, :linsert, :llen, :lpop, :lpush, :lpushx, :lrange, :lrem, :lset, :ltrim,
    :mapped_hmset, :mapped_hmget, :mapped_mget, :mapped_mset, :mapped_msetnx, :move, :mset,
-   :msetnx, :persist, :pexpire, :pexpireat, :psetex, :pttl, :rename, :renamenx, :rpop, :rpoplpush, :rpush, :rpushx, :sadd, :scard,
-   :sdiff, :set, :setbit, :setex, :setnx, :setrange, :sinter, :sismember, :smembers, :sort, :spop, :srandmember, :srem, :strlen,
+   :msetnx, :persist, :pexpire, :pexpireat, :psetex, :pttl, :rename, :renamenx, :rpop, :rpoplpush, :rpush, :rpushx, :sadd, :sadd?, :scard,
+   :sdiff, :set, :setbit, :setex, :setnx, :setrange, :sinter, :sismember, :smembers, :sort, :spop, :srandmember, :srem, :srem?, :strlen,
    :sunion, :ttl, :type, :watch, :zadd, :zcard, :zcount, :zincrby, :zrange, :zrangebyscore, :zrank, :zrem, :zremrangebyrank,
    :zremrangebyscore, :zrevrange, :zrevrangebyscore, :zrevrank, :zrangebyscore,
    :dump, :restore].each do |m|

spec/lib/discourse_redis_spec.rb

@@ -115,6 +115,26 @@ RSpec.describe DiscourseRedis do
       end
     end
 
+    describe '#sadd?' do
+      it "should send the right command with the right key prefix to redis" do
+        redis = DiscourseRedis.new
+
+        redis.without_namespace.expects(:sadd?).with("default:testset", "1", anything)
+
+        redis.sadd?("testset", "1")
+      end
+    end
+
+    describe '#srem?' do
+      it "should send the right command with the right key prefix to redis" do
+        redis = DiscourseRedis.new
+
+        redis.without_namespace.expects(:srem?).with("default:testset", "1", anything)
+
+        redis.srem?("testset", "1")
+      end
+    end
+
     describe 'when namespace is disabled' do
       let(:redis) { DiscourseRedis.new(nil, namespace: false) }