Trim words in corporate CLA check

[OmarShehata]

Concierge failed to look up a CLA that we know was in a corporate Schedule A (CesiumGS/cesium#8076 (comment)). This was because the block of text returned from the Google Sheets API has extra control characters at the end that need to be trimmed before doing a string comparison.

Tested this by running concierge locally with the corporate CLA spreadsheet to confirm it now correctly detects it.

There was also a typo in that it was setting foundIndividualCLA regardless of whether it was the corporate or individual, but that doesn't change the returned result either way.

[cesium-concierge]

Thanks for the pull request @OmarShehata!

• ❌ Missing CLA.
  • Please send in a Contributor License Agreement (CLA) and comment back here to let us know to check this!
• ❔ CHANGES.md was not updated.
  • If this change updates the public API in any way, please add a bullet point to CHANGES.md.

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✨ ✨ ✨I'm the Cesium Concierge and I'm here to test things. ✨ ✨ ✨

[emackey]

This comment from Concierge is probably the most ironic one yet posted here.

[OmarShehata]

Merging and deploying since I've already tested this.