Increase response header timeout for gateway (#9400)
Increase response header timeout for gateway (#9400)

fixes: #9295 
harshavardhana/minio,aead/minio,fwessels/minio,aead/minio,NitishT/minio,NitishT/minio,harshavardhana/minio,aead/minio,fwessels/minio,vadmeste/minio,krisis/minio,harshavardhana/minio,fwessels/minio,harshavardhana/minio,harshavardhana/minio,NitishT/minio,aead/minio,donatello/minio,balamurugana/minio,minio/minio,aead/minio,harshavardhana/minio,fwessels/minio,vadmeste/minio,donatello/minio,aead/minio,balamurugana/minio,aead/minio,aead/minio,krisis/minio,harshavardhana/minio,harshavardhana/minio,NitishT/minio,minio/minio