Update CI processes (#296)

- Upgrade to latest terraform version (1.0.4)
- Remove tflint from linting pipeline (was not doing anything)
- Add terraform fmt check to linting pipeline
- Pass all code through terraform fmt

modules/bigtable-instance/main.tf

@@ -49,7 +49,7 @@ resource "google_bigtable_table" "default" {
   name          = each.key
   split_keys    = each.value.split_keys
 
-  dynamic column_family {
+  dynamic "column_family" {
     for_each = each.value.column_family != null ? [""] : []
 
     content {