Cardano Updates

tasty 1.5.4 causes ~4x higher peak memory under parallel test execution
(510 MiB max residency vs 160 MiB with 1.5.3), causing OOM at GHCRTS=-M900M
on x86_64-linux CI.

These expose some combinators which allow for summarising rolling
statistics across a long stream in constant memory.

These modules expose sliding windows backed by an approximate t-digest
measure, which permit efficient computations of quantiles in bounded memory.

These modules keep samples within a configured duration of the newest
sample's timestamp. These variants abstract over the timestamp type
via the 'TimeLike' class, which have two implementations defined:

- `UTCTime` / `NominalDiffTime` (wall-clock, from `time`)
- `Time` / `DiffTime` (monotonic, from `io-classes:si-timers`)

Monotonic is preferred when sliding-window correctness must not be
perturbed by NTP corrections or wall-clock jumps; wall-clock fits
data that already carries `UTCTime` timestamps.

These modules provide a fingertree-backed sliding window with fixed
element count. The fingertree backend caches a user-supplied monoidal measure
`v` which updates incrementally as elements are added and evicted, which
allows for constant time lookup of its value regardless of window
size.

The Window.Count module exposes a public API, and the private internal
implementation is exposed by the Internal.Count module without any
guarantees that it stays compatible between any releases.

The Measures module exposes some common and practical prebuilt
measures.

Expose pingClient - a way to run a single ping client

Allows to run a single pingClient.  Re-exported `PingClientError`.

Catch `IOError`s and PingClientError`s and return an `Either PingClientError` ()`