Bug interpreting regex {} as glue syntax in col_vals_regex() autobriefs

[yjunechoe]

create_agent(small_table) %>% 
  col_vals_regex(b, "^\\d{1,2}") %>% 
  interrogate()
#> Error:
#> ! Failed to parse glue component
#> Caused by error in `parse()`:
#> ! <text>:1:2: unexpected ','
#> 1: 1,
#>      ^

create_agent(small_table) %>% 
  col_vals_regex(b, "^\\d{1,2}", brief = "") %>% 
  interrogate()
#> 
#> ── Interrogation Started - there is a single validation step ─────────────────────
#> ✔ Step 1: OK.
#> 
#> ── Interrogation Completed ───────────────────────────────────────────────────────

Originally posted by @yjunechoe in #598

[yjunechoe]

Closed by #601