ci: Fix attributions:check silent failure

[Gudahtt]

Description

The script attributions:check was silently failing when the attempt to generate attributions failed. This led to the attributions in v12.6.0 being out-of-date.

Related issues

Relates to #28412

Manual testing steps

1. Run yarn attributions:check. See that the exit code is non-zero
   • on develop it also fails, but with a zero exit code, indicating success despite the fact that it failed.

Screenshots/Recordings

N/A

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[metamaskbot]

Builds ready [cec7146]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7
  • common: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (2051 ± 193 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1696	3633	2050	402	193
		domContentLoaded	1674	3609	2016	400	192
		load	1694	3630	2051	403	193
		domInteractive	18	238	69	46	22
		backgroundConnect	9	89	36	24	12
		firstReactRender	55	168	93	26	13
		getState	5	87	28	22	11
		initialActions	0	1	0	0	0
		loadScripts	1181	2976	1495	372	179
		setupStore	6	59	15	17	8
		uiStartup	1912	3918	2251	419	201

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)