🐛 Source Mixpanel: Add default primary key to export stream

[bazarnov]

What

Resolving: https://github.com/airbytehq/oncall/issues/2939

How

• added primary_key to export stream (distinct_id)
• updated CAT config to make it green, based on: https://connectors.airbyte.com/files/generated_reports/test_summary/source-mixpanel/index.html

🚨 User Impact 🚨

Not a breaking change.

[github-actions]

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[github-actions]

source-mixpanel test report (commit 472fc2355a) - ✅

⏲️ Total pipeline duration: 194mn42s

Step	Result
Connector package install	✅
Build source-mixpanel docker image for platform linux/x86_64	✅
Unit tests	✅
Acceptance tests	✅
Code format checks	✅
Validate airbyte-integrations/connectors/source-mixpanel/metadata.yaml	✅
Connector version semver check	✅
Connector version increment check	✅
QA checks	✅

🔗 View the logs here

☁️ View runs for commit in Dagger Cloud

Please note that tests are only run on PR ready for review. Please set your PR to draft mode to not flood the CI engine and upstream service on following commits.
You can run the same pipeline locally on this branch with the airbyte-ci tool with the following command

airbyte-ci connectors --name=source-mixpanel test

[github-actions]

source-mixpanel test report (commit 472fc2355a) - ✅

⏲️ Total pipeline duration: 67mn01s

Step	Result
Connector package install	✅
Build source-mixpanel docker image for platform linux/x86_64	✅
Unit tests	✅
Acceptance tests	✅
Code format checks	✅
Validate airbyte-integrations/connectors/source-mixpanel/metadata.yaml	✅
Connector version semver check	✅
Connector version increment check	✅
QA checks	✅

🔗 View the logs here

☁️ View runs for commit in Dagger Cloud

Please note that tests are only run on PR ready for review. Please set your PR to draft mode to not flood the CI engine and upstream service on following commits.
You can run the same pipeline locally on this branch with the airbyte-ci tool with the following command

airbyte-ci connectors --name=source-mixpanel test

[grkhr]

This could be wrong. distinct_id is a kind of user id. Unique key of the event (which is the entity of export) is the insert_id.

@bazarnov