chore: bump to https-pem@3 (devDep) for node-forge@1.3 vuln fixes

[trentm]

See jfromaniello/selfsigned#55
See also: watson/https-pem#5

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After this change:

% npm audit
found 0 vulnerabilities

i.e. this covers the (current) last of the dependabot alerts (all in devDependencies).

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• Start Time: 2022-05-30T19:40:31.361+0000

• Duration: 21 min 47 sec

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Total	254049

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