'tags' is now a map argument, not a block

[earchibald-lv]

Using terraform 0.12.20:

Error: Unsupported block type

  on main.tf line 99, in resource "aws_subnet" "subnet-0227b358936f19854-SpeechIQ-Private-B":
  99:     tags {

Blocks of type "tags" are not expected here. Did you mean to define argument
"tags"? If so, use the equals sign to assign it a value.

[on3iropolos]

Duplicate of #487

[ARSport]

We should consider closing this one in favor of #484 which haves a fix too.