Add typescript to worker project

[mslourens]

Description

Fixes #4003 - Adds typescript support to the worker project

[mslourens]

I am not sure why the tests fail, because I didn't change actual code, just added typescript and changed the index.js to index.ts. The error message is quite cryptic, but after some debugging I found the actual error:

Error: getaddrinfo ENOTFOUND smtptesthost.com
        at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:71:26)
        at GetAddrInfoReqWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
      errno: -3008,
      code: 'EDNS',
      syscall: 'getaddrinfo',
      hostname: 'smtptesthost.com',
      command: 'CONN'
    }

I tried to compare develop with my branch but didn't see any changes that could cause this error.

Any help is appreciated.

[Rory-Powell]

@mslourens found the issues with the tests, it was to do with changes in how jest mock statements are hoisted when using typescript. The fix has been pushed to your branch. For more context see: kulshekhar/ts-jest#90 (comment)

[Rory-Powell]

LGTM 👍

[codecov-commenter]

Codecov Report

Merging #4116 (0716f18) into develop (50bb4a8) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #4116   +/-   ##
========================================
  Coverage    67.95%   67.95%           
========================================
  Files          144      144           
  Lines         4946     4946           
  Branches       762      762           
========================================
  Hits          3361     3361           
  Misses        1117     1117           
  Partials       468      468           

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[mslourens]

@Rory-Powell thanks for your help. Somehow I had to build the app before running the e2e tests, it seemed some old version was still being used. Now the tests are green again and we can merge this PR.

[Rory-Powell]

Good call out on the need to build, we had a discussion around this recently and a fix has been added in this PR already
https://github.com/Budibase/budibase/pull/4276/files#diff-a549d2657aa3ea787f685c405385a2c352488058096cb3c4d68a4ab82bf3bf50 so I've just reverted the precy:ci" command in this PR