fix: remove url from seer rpc signature

[sentry-autofix]

👋 Hi there! This PR was automatically generated by Autofix 🤖

This fix was triggered by Jenn Mueng.

Fixes SEER-SP. The issue was that: Seer's SENTRY_BASE_URL environment variable, configured with a trailing dot, caused signature verification to fail, resulting in a 401 error.

The seer rpc signature should not include the url.

If you have any questions or feedback for the Sentry team about this fix, please email [email protected] with the Run ID: 14267.

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
24689	1	24688	294

View the top 1 failed test(s) by shortest run time

tests.sentry.api.endpoints.test_seer_rpc.TestSeerRpc::test_404

Stack Traces | 0.164s run time

#x1B[1m#x1B[.../api/endpoints/test_seer_rpc.py#x1B[0m:38: in test_404
    assert response.status_code == 404
#x1B[1m#x1B[31mE   assert 401 == 404#x1B[0m
#x1B[1m#x1B[31mE    +  where 401 = <Response status_code=401, "application/json">.status_code#x1B[0m

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