fix(oauth2): Prevent concurrent token exchanges

[seer-by-sentry]

Fixes SENTRY-46A9. The issue was that: Authorization code reuse due to multiple callback attempts causes Google to reject token exchange with "Malformed auth code."

• Add a lock around the token exchange process to prevent concurrent exchanges using the same authorization code.
• This prevents issues where multiple requests are made to exchange the same code, which can lead to errors or unexpected behavior.

This fix was generated by Seer in Sentry, triggered by rahul.chhabria@sentry.io. 👁️ Run ID: 332052

Not quite right? Click here to continue debugging with Seer.

Legal Boilerplate

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.

[codecov]

❌ 77 Tests Failed:

Tests completed	Failed	Passed	Skipped
27192	77	27115	236

View the top 3 failed test(s) by shortest run time

tests.sentry.identity.test_oauth2.OAuth2CallbackViewTest::test_api_error

Stack Traces | 0.044s run time

#x1B[1m#x1B[.../sentry/identity/test_oauth2.py#x1B[0m:153: in test_api_error
    result = self.view.exchange_token(self.request, pipeline, code)
#x1B[1m#x1B[.../sentry/identity/oauth2.py#x1B[0m:298: in exchange_token
    lock = Lock(
#x1B[1m#x1B[31mE   TypeError: Lock.__init__() got an unexpected keyword argument 'name'#x1B[0m

tests.sentry.identity.test_oauth2.OAuth2CallbackViewTest::test_connection_error

Stack Traces | 0.044s run time

#x1B[1m#x1B[.../sentry/identity/test_oauth2.py#x1B[0m:122: in test_connection_error
    result = self.view.exchange_token(self.request, pipeline, code)
#x1B[1m#x1B[.../sentry/identity/oauth2.py#x1B[0m:298: in exchange_token
    lock = Lock(
#x1B[1m#x1B[31mE   TypeError: Lock.__init__() got an unexpected keyword argument 'name'#x1B[0m

tests.sentry.identity.test_oauth2.OAuth2CallbackViewTest::test_exchange_token_success_customer_domains

Stack Traces | 0.046s run time

#x1B[1m#x1B[.../sentry/identity/test_oauth2.py#x1B[0m:77: in test_exchange_token_success_customer_domains
    result = self.view.exchange_token(self.request, pipeline, code)
#x1B[1m#x1B[.../sentry/identity/oauth2.py#x1B[0m:298: in exchange_token
    lock = Lock(
#x1B[1m#x1B[31mE   TypeError: Lock.__init__() got an unexpected keyword argument 'name'#x1B[0m

To view more test analytics, go to the Test Analytics Dashboard
_{📋 Got 3 mins? Take this short survey to help us improve Test Analytics.}