Feature/safo6 nrl 1841 performance tests public mode

[sandyforresternhs]

• The internal tests haven’t changed - the name of the commands have just been updated in the makefile to make it clearer they’re internal
• This pr covers the changes required for the consumer performance tests to run in public mode - the producer changes will be addressed in a subsequent pr
• Includes changes for both consumer & producer tests to be run in public mode
• Updated readme with new make commands for running these public tests, now including configuring the base URL and a simple local http server to serve up refreshed bearer auth tokens (each token is valid for 5 mins and the tests run for 36 mins, so needs refreshing mid-test run). See ticket for more info on why this approach was selected.
• Tested these new commands for both producer & consumer in public & internal modes ✅

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Commit Hash: 0bf7aff14df6ac96f80e3550dc1d362130e74361
URL: https://nrl1841-01ba47.api.record-locator.dev.national.nhs.uk/

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🚀 PR environment successfully deployed.
Commit Hash: 48e7f01c0b519e31bb73d4fd66bce3e1676e652f
URL: https://nrl1841-01ba47.api.record-locator.dev.national.nhs.uk/

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🚀 PR environment successfully deployed.
Commit Hash: 9a9b2fb88653efe6919b854bc324b1cd8aff02a7
URL: https://nrl1841-01ba47.api.record-locator.dev.national.nhs.uk/

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🚀 PR environment successfully deployed.
Commit Hash: f6696cf8155ca9b9ae708500de823f39349527be
URL: https://nrl1841-01ba47.api.record-locator.dev.national.nhs.uk/

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

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🚀 PR environment successfully deployed.
Commit Hash: fff45f56580e3e3ba38982fb2f488ecd505b382c
URL: https://nrl1841-01ba47.api.record-locator.dev.national.nhs.uk/

[github-actions]

🚀 PR environment successfully deployed.
Commit Hash: fff45f56580e3e3ba38982fb2f488ecd505b382c
URL: https://nrl1841-01ba47.api.record-locator.dev.national.nhs.uk/

[mattdean3-nhs]

Love this - nice work on the Python token handler/refresher 💪

Haven't tested it myself yet, but will give it a go later in the day.