Update tap to v15

[jonathansamines]

Updated project to tap 15. Most of changes are due to deprecations:

• Several aliases are now deprecated (i.e t.is, t.throw)
• --esm option was removed. Using causes the failures seen in Bump tap from 14.11.0 to 15.1.5 #73
• afterEach no longer supports callbacks

Notes

--coverage=true currently causes some tests to fail. Seems to be related to tapjs/tapjs#669, but I am still investigating. When coverage is enabled, tests that use execSync to verify the log redirection to pino fail because it doesn't happen (debug logs are redirected to stderr instead)

Edit 2

The problem seems to come from the nyc upgrade from v14 to v15:

# fails in tap 15 (nyc 15), but succeeds in tap 14 (nyc 14)
npx tap test/*.js

# fails with nyc 15 but succeeds in nyc 14
npx nyc tap --no-coverage test/*.js

[mcollina]

lgtm once CI is green

[codecov-commenter]

Codecov Report

Merging #83 (231198a) into master (a093832) will increase coverage by 2.00%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master       #83      +/-   ##
===========================================
+ Coverage   98.00%   100.00%   +2.00%     
===========================================
  Files           2         2              
  Lines          50        50              
===========================================
+ Hits           49        50       +1     
+ Misses          1         0       -1     

Impacted Files	Coverage Δ
index.js	100.00% <0.00%> (+2.77%)	⬆️

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[jsumners]

https://github.com/pinojs/pino-debug/runs/4850023188?check_suite_focus=true#step:6:95 is at least one test that needs to be revised.

[mcollina]

can you fix CI? It seems it does not work anymore with debug@4