Update typescript to 4.9.5 in Traffic Portal integration tests

[zrhoffman]

This PR updates typescript to 4.9.5 in the TP integration tests to resolve this error:

node_modules/axios/index.d.ts(7,18): error TS1005: ']' expected.
node_modules/axios/index.d.ts(7,21): error TS1005: ';' expected.
node_modules/axios/index.d.ts(7,35): error TS1005: '(' expected.
node_modules/axios/index.d.ts(7,36): error TS1135: Argument expression expected.
node_modules/axios/index.d.ts(7,50): error TS1005: ')' expected.
node_modules/axios/index.d.ts(8,1): error TS1128: Declaration or statement expected.
Error on line 146 of /home/runner/work/trafficcontrol/trafficcontrol/./.github/actions/tp-integration-tests/entrypoint.sh

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Which Traffic Control components are affected by this PR?

• Traffic Portal - integration tests

What is the best way to verify this PR?

See if TP tests still produce that error

PR submission checklist

• This PR has tests
• This PR has documentation
• This PR has a CHANGELOG.md entry
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)