chore(nimbus): Update application-services#15002
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Because * The FmlClient constructor can raise FmlError.ValidationError when a feature manifest has validation errors (e.g. a variable with both gecko-pref and default, which are now mutually exclusive) * NimbusFmlLoader.fml_client() did not catch this, causing a 500 on any page that calls get_invalid_fields_errors() for affected experiments * This was discovered via failing Fenix integration tests on PR #15002 This commit * Wraps the FmlClient() constructor in a try/except FmlError so invalid manifests are logged and skipped rather than crashing the page * Adds unit tests for the graceful degradation in both fml_client() and get_fml_errors() Fixes #15018
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…15019) Because * The `FmlClient` constructor can raise `FmlError.ValidationError` when a feature manifest has validation errors (e.g., a variable with both `gecko-pref` and `default`, which are now mutually exclusive as of the latest application-services build) * `NimbusFmlLoader.fml_client()` did not catch this exception, so it propagated up and caused a 500 error on any page that calls `get_invalid_fields_errors()` (including the audience page during experiment creation) * This was discovered via failing Fenix integration tests on PR #15002 (application-services version bump) — all `FIREFOX_FENIX` UI tests failed with `TimeoutException` because the audience page returned a 500 This commit * Wraps the `FmlClient()` constructor in a `try/except FmlError` so invalid manifests are logged and skipped rather than crashing the page * Adds unit tests for the graceful degradation in both `fml_client()` and `get_fml_errors()` Fixes #15018
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