HPCC-30866 Remove fork() unsafe code from open-telemetry random number generator

[ghalliday]

Type of change:

• This change is a bug fix (non-breaking change which fixes an issue).
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• This change fixes warnings (the fix does not alter the functionality or the generated code)
• This change is a breaking change (fix or feature that will cause existing behavior to change).
• This change alters the query API (existing queries will have to be recompiled)

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Testing:

[github-actions]

https://track.hpccsystems.com/browse/HPCC-30866
Jira not updated (user does not match)

[ghalliday]

@mckellyln please take a look at this PR, and please then discuss with me - I want to double check my diagnosis.

Here is the change that is being applied to the open-telemetry code base that is contained in the patch file:

https://github.com/open-telemetry/opentelemetry-cpp/compare/main...ghalliday:opentelemetry-cpp:randomfork?expand=1

And here is the issue I opened against the open telemetry project describing the problem:

open-telemetry/opentelemetry-cpp#2408

[github-actions]

https://track.hpccsystems.com/browse/HPCC-30866
Jira updated

[mckellyln]

Looks good.

[ghalliday]

Squashed changes, and updated to match the PR submitted to the project.