tzdata error

[brianmay]

I have seen this running tests and on nix deploy.

** (FunctionClauseError) no function clause matching in :calendar.time_to_seconds/1
    (stdlib 8.0.3) calendar.erl:873: :calendar.time_to_seconds({24, 0, 0})
    (stdlib 8.0.3) calendar.erl:275: :calendar.datetime_to_gregorian_seconds/1
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:381: Tzdata.PeriodBuilder.datetime_to_utc/3
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:287: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:334: Tzdata.PeriodBuilder.calc_periods_for_year/10
    (tzdata 1.1.3) lib/tzdata/period_builder.ex:322: Tzdata.PeriodBuilder.calc_periods_for_year/10

AI says:

tzdata crash: :calendar.time_to_seconds({24, 0, 0}) is a known tzdata 1.1.3 bug (tzdata:381) — it can't parse newer IANA tzdata releases that encode transitions at 24:00. Fixed upstream in tzdata 1.1.4+. Our mix.lock pins tzdata 1.1.3. The CI fetches fresh tzdata from iana.org, so it trips the bug. Our branch didn't touch tzdata.

If that is correct, should be easy to fix.