ICU-22946 Fix github breakage on pip3 install hjson

[FrankYFTang]

Fixing icu4c-without-collation-rule-strings
Ref: https://stackoverflow.com/questions/75608323/how-do-i-solve-error-externally-managed-environment-every-time-i-use-pip-3

Checklist

• Required: Issue filed: https://unicode-org.atlassian.net/browse/ICU-22946
• Required: The PR title must be prefixed with a JIRA Issue number. Example: "ICU-1234 Fix xyz"
• Required: The PR description must include the link to the Jira Issue, for example by completing the URL in the first checklist item
• Required: Each commit message must be prefixed with a JIRA Issue number. Example: "ICU-1234 Fix xyz"
• Issue accepted (done by Technical Committee after discussion)
• Tests included, if applicable
• API docs and/or User Guide docs changed or added, if applicable

[FrankYFTang]

The fix is wrong and the problem go away. Probably because someone in github fix it.