Support yml and yaml by matching before @

[AlexanderOMara]

The new parentWorkflowPath regex assumes .yml extension and errors out on .yaml extension, a breaking regression in version 2.0.2. I think matching before @ is safer (library.js also does it that way).

Run gautamkrishnar/keepalive-workflow@v2
/home/runner/work/_actions/gautamkrishnar/keepalive-workflow/v2/dist/index.js:23040
      const parentWorkflowPath = process.env.GITHUB_WORKFLOW_REF.match(/^(.*\.yml)/)[1];
                                                                                    ^

TypeError: Cannot read properties of null (reading '1')
    at /home/runner/work/_actions/gautamkrishnar/keepalive-workflow/v2/dist/index.js:23040:85
    at new Promise (<anonymous>)
    at /home/runner/work/_actions/gautamkrishnar/keepalive-workflow/v2/dist/index.js:23039:21
    at Array.forEach (<anonymous>)
    at Object.<anonymous> (/home/runner/work/_actions/gautamkrishnar/keepalive-workflow/v2/dist/index.js:23038:17)
    at Module._compile (node:internal/modules/cjs/loader:1241:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1295:10)
    at Module.load (node:internal/modules/cjs/loader:1091:32)
    at Module._load (node:internal/modules/cjs/loader:938:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:83:12)

[gautamkrishnar]

@AlexanderOMara Whoops i never knew Github started supporting yaml as well. thanks for the fix.

[gautamkrishnar]

@all-contributors please add @AlexanderOMara for code

[allcontributors]

@gautamkrishnar

I've put up a pull request to add @AlexanderOMara! 🎉