Disallow resource disposal Futures from failing

[Avaq]

This is a significant breaking change to how hook handles failure of resource disposal.

Prior to this change, when resource disposal failed:

• the failure state was propagated if the future had not been cancelled; or
• the failure was completely ignored if the future had been cancelled.

After this change, when resource disposal fails for whatever reason:

• a fatal error is raised, which can be handled by forkCatch if the future had not been cancelled; or
• a fatal error is thrown if the future had been cancelled.

The goal of this change is to be louder about non-disposed resources, and encourage programs to restart in case it happens.

[codecov]

Codecov Report

Merging #311 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #311   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          48     48           
  Lines        1074   1074           
  Branches      224    224           
=====================================
  Hits         1074   1074

Impacted Files	Coverage Δ
src/hook.mjs	100% <100%> (ø)	⬆️

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