feat(aws-lambda): Add Lambda runtime resource attributes

[pabloDeputter]

Description

Expand aws-lambda instrumentation with extra resource identity and runtime metadata following OTel (https://opentelemetry.io/docs/specs/semconv/faas/aws-lambda/).

Changes:

• add sentry.kind=server.
• add cloud.account.id, extracted from the invoked function ARN.
• cloud.resource_id is now normalized from the invoked function ARN; keep the original value in aws.lambda.invoked_arn and replace an alias with the resolved published version when the function is not $LATEST.
• add cloud.availability_zone from the metadata endpoint when available; cached using the same Cache-Control max-age; reduced during SnapStart initialization (https://docs.aws.amazon.com/lambda/latest/dg/configuration-metadata-endpoint.html).
• cloud.region is now extracted from AWS_REGION env. var; faas.name from AWS_LAMBDA_FUNCTION_NAME; faas.version from AWS_LAMBDA_FUNCTION_VERSION following OTel (https://opentelemetry.io/docs/specs/semconv/faas/aws-lambda/#resource-detector).
• refresh sentry_sdk on every test setup (for easier local testing so runs don’t reuse old behavior from earlier implementation).
• add capture_internal_exceptions() around attribute extraction so that a single failure does not affect the other instrumentation.

Tests:

• add following test behavior to test_span_streaming_url_query_params_with_data_collection(): verify that its availability-zone response is reused across warm invocations according to Cache-Control.

Issues

Resolves #7931

[github-actions]

Codecov Results 📊

✅ 133451 passed | ⏭️ 7276 skipped | Total: 140727 | Pass Rate: 94.83% | Execution Time: 436m 47s

📊 Comparison with Base Branch

Metric	Change
Total Tests	—
Passed Tests	—
Failed Tests	—
Skipped Tests	—

✨ No test changes detected

All tests are passing successfully.

❌ Patch coverage is 4.76%. Project has 2662 uncovered lines.
❌ Project coverage is 90.04%. Comparing base (3ff6e26) to head (2060499).

Files with missing lines (4)

File	Patch %	Lines
sentry_sdk/integrations/aws_lambda/_handler.py	0.00%	⚠️ 37 Missing
sentry_sdk/integrations/aws_lambda/_metadata.py	0.00%	⚠️ 19 Missing
sentry_sdk/integrations/aws_lambda/_runtime.py	0.00%	⚠️ 3 Missing
sentry_sdk/integrations/aws_lambda/_request.py	66.67%	⚠️ 1 Missing

Coverage diff

@@            Coverage Diff             @@
##        master       #PR       +/-##
==========================================
- Coverage    90.29%    90.04%    -0.25%
==========================================
  Files          202       207        +5
  Lines        26625     26715       +90
  Branches      9926      9936       +10
==========================================
+ Hits         24039     24053       +14
- Misses        2586      2662       +76
- Partials      1515      1515         —

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Generated by Codecov Action

[sentry-warden]

Malformed metadata Cache-Control drops the AZ and causes repeated fetches

After a successful metadata response, a missing or malformed Cache-Control/max-age raises before _get_availability_zone() returns the AZ or populates its cache. The handler swallows the exception, so cloud.availability_zone is omitted and the next invocation repeats the blocking metadata request. Parse the cache lifetime defensively and still return the AZ when possible.

Evidence

• _get_availability_zone() reads AvailabilityZoneID, then parses response.headers["Cache-Control"] and converts the extracted max-age to float before caching or returning the AZ.
• A missing header, absent max-age, or nonnumeric value raises before _lambda_metadata_cache is assigned.
• In _wrap_handler(), the call is inside capture_internal_exceptions(), so the exception is swallowed and the AZ attribute is omitted.
• With no valid cache entry, each later invocation with AWS_LAMBDA_METADATA_API set repeats the HTTP request, which has 0.5-second connect and read timeouts.

Also found at 1 additional location

• sentry_sdk/integrations/aws_lambda/_metadata.py:43-44

_{Identified by Warden · code-review · R29-W79}

[pabloDeputter]

won't happen, unrealistic scenario