Add pull-request number as an optional action input

[jprinet]

This change allows to use the action with non pull_request / pull_request_target event trigger (ie. workflow_run)

fixes #141

[jprinet]

Note: I don't see a conflict in the dist/index.js file, this one should probably be created by your CI anyway.

[ibakshay]

Hi @jprinet,
I apologize for the late response.

Thank you very much for your valuable contribution! I really appreciate it.
I am getting the below error when I do npm run build from this branch.
Could you please check?

ncc: Version 0.21.1
ncc: Compiling file index.js
Error: error:0308010C:digital envelope routines::unsupported
    at new Hash (node:internal/crypto/hash:68:19)
    at Object.createHash (node:crypto:138:10)
    at hashOf (evalmachine.<anonymous>:1:1411831)
    at module.exports (evalmachine.<anonymous>:1:1413919)
    at runCmd (evalmachine.<anonymous>:1:46102)
    at 819 (evalmachine.<anonymous>:1:43078)
    at __webpack_require__ (evalmachine.<anonymous>:1:216)
    at startup (evalmachine.<anonymous>:1:353)
    at module.exports.8 (evalmachine.<anonymous>:1:385)
    at evalmachine.<anonymous>:1:395 {
  opensslErrorStack: [ 'error:03000086:digital envelope routines::initialization error' ],
  library: 'digital envelope routines',
  reason: 'unsupported',
  code: 'ERR_OSSL_EVP_UNSUPPORTED'
}

[jprinet]

Hi @ibakshay
No problem, I am getting a successful local run with a more recent ncc version
Would it be ok to upgrade?

➜  github-action git:(master) ✗ node --version                                                              
v16.20.1
➜  github-action git:(master) ✗ npm -version                                                                
8.19.4
➜  github-action git:(master) ✗ ncc --version
0.38.0
➜  github-action git:(master) ✗ npm run build                                                 

> [email protected] build
> tsc && ncc build

ncc: Version 0.38.0
ncc: Compiling file index.js into CJS
1151kB  dist/index.js
1151kB  [588ms] - ncc 0.38.0