Release 4.2.0.

[NickNaso]

I'm starting to work on next release 4.2.0 after the merge of the following PRs:

• src,test: allow creating Function with move-only functor #1065.

Please let me know if you want to add some other things in this release.

[NickNaso]

CI:

Version	Job	Status
main	https://ci.nodejs.org/job/node-test-node-addon-api-new/4673/	✓
v16.x	https://ci.nodejs.org/job/node-test-node-addon-api-new/4672/	✓
v14.x	https://ci.nodejs.org/job/node-test-node-addon-api-new/4674/	✓
v12.x	https://ci.nodejs.org/job/node-test-node-addon-api-new/4675/	✓

CI:

Version	Job	Status
main	https://ci.nodejs.org/job/node-test-node-addon-api-new/4676/	✓
v16.x	https://ci.nodejs.org/job/node-test-node-addon-api-new/4677/	✓
v14.x	https://ci.nodejs.org/job/node-test-node-addon-api-new/4678/	✓
v12.x	https://ci.nodejs.org/job/node-test-node-addon-api-new/4679/	✓

[NickNaso]

I'm closing the issue because the release v4.2.0 has been published.