UTILS-143 Upgrade phonenumbers

[kalbfled]

Description

Use notification-utils v2.3.3, which upgrades the Python "phonenumbers" package.

issue UTILS 143

How Has This Been Tested?

Unit and regression tests pass.

Checklist

• I have assigned myself to this PR
• PR has an appropriate title: #9999 - What the thing does
• PR has a detailed description, including links to specific documentation
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• I did not remove any parts of the template, such as checkboxes even if they are not used
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• I have added tests that prove my fix is effective or that my feature works. Testing guidelines
• I have ensured the latest main is merged into my branch and all checks are green prior to review
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• The ticket was moved into the DEV test column when I began testing this change