fix: look for typedoc ending in .zip

[traeok]

Describe your pull request here:

Recently, the typedoc was updated so that a .zip.bundle file is packaged alongside the other files in the Zowe release folder. However, this broke the grep check in updateTypedoc.sh that looks for the typedoc ZIP and it grabs the bundle instead, causing unzip to fail on line 25 of the script. This PR updates the check so it grabs the ZIP rather than the .zip.bundle file.

List the file(s) included in this PR:

scripts/updateTypedoc.sh

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[github-actions]

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[anaxceron]

thanks for the fix, @traeok!

[github-actions]

🚀 Deployed on https://679d2a31e91d1929013fc56f--zowe-docs-master.netlify.app

[t1m0thyj]

LGTM, thanks @traeok!