Speed up deprecate_soft() / deprecate_warn(), actually warn after 8 hours, and interpolate ({arg})

[DavisVaughan]

The 3 commits here are self contained. Look at them individually to easily understand this PR.

The goal of this PR is to improve performance of deprecate_soft() and friends. We've been plagued by poor performance here for years, and it really hurts when used repeatedly in a group_by() + mutate() where the function used in mutate() is deprecated or has a deprecated argument.

I've been able to make it ~3x faster by:

• Swapping glue_data() for sprintf(), at the cost of ergonomics. But this is the biggest win, so I think it is worth it.
• Swapping arg_match() for arg_match0()
• Avoiding -.POSIXct and difftime operations when computing the 8 hour time diff, which was doing the wrong thing anyways!!

cross::bench_branches(\() {
  library(lifecycle)
  
  # trigger the 8 hour warning once
  deprecate_soft("1.1.0", I("my thing"), details = "for this reason")

  bench::mark(
    deprecate_soft("1.1.0", I("my thing"), details = "for this reason")
  )
})
#> # A tibble: 2 × 7
#>   branch               expression                    min  median `itr/sec` mem_alloc `gc/sec`
#>   <chr>                <bch:expr>                <bch:t> <bch:t>     <dbl> <bch:byt>    <dbl>
#> 1 fix/deprecation-time "deprecate_soft(\"1.1.0\…  73.1µs  75.3µs    12802.    8.56KB     168.
#> 2 main                 "deprecate_soft(\"1.1.0\… 224.8µs 231.5µs     4229.    8.56KB     176.

I got here by analyzing this profvis output

profvis::profvis(for (i in 1:100000) lifecycle::deprecate_soft("1.5.0", I("a thing"), details = "another thing"))

[DavisVaughan]

We actually had a bug here where ({arg}) wasn't being interpolated

[DavisVaughan]

(arg) here should have been ({arg})

[DavisVaughan]

This incorrect test started "failing" all of a sudden after I started unclass()ing the POSIXct, which is how I found the bug

[tanho63]

@DavisVaughan sorry for gh stalking, but very curious: what is this {cross} package?

[DavisVaughan]

https://github.com/DavisVaughan/cross