build: Add loki step to CI

[tkajtoch]

Summary

Resolves https://github.com/elastic/eui/issues/7617.

This PR adds a new buildkite step to run Loki in CI for open pull requests.

QA

QA needs to be done manually after merging this PR. Please make sure the script and configuration look valid.

[tkajtoch]

Will be unblocked and ready for review when https://github.com/elastic/ci-agent-images/pull/691 is merged

[kibanamachine]

Preview staging links for this PR:

• Docs site: https://eui.elastic.co/pr_7747/
• Storybook: https://eui.elastic.co/pr_7747/storybook

[elasticmachine]

:broken_heart: Build Failed

• Buildkite Build
• Commit: 8d2d2fc39fbf96fe81d176909248d96c72dd9d83

Failed CI Steps

• :camera_with_flash: Visual regression tests

History

• :broken_heart: Build #2026 failed 8d2d2fc39fbf96fe81d176909248d96c72dd9d83
• :broken_heart: Build #2024 failed 0a5671fe16b167b47d7f41f013aaef7f6b62da07
• :broken_heart: Build #2018 failed 3f9d2c276f573e9320cc0fbbd80bd36cc4770022
• :broken_heart: Build #1947 failed 34769f567418dd8e42b7305d8ebfe95c0896e780
• :broken_heart: Build #1946 failed c42807c4a2b48b86f09846d3affa080923af312a

cc @tkajtoch

[github-actions[bot]]

👋 Hey there. This PR hasn't had any activity for 90 days. We'll automatically close it if that trend continues for another week. If you feel this issue is still valid and needs attention please let us know with a comment.

[github-actions[bot]]

❌ We're automatically closing this PR due to lack of activity. Please comment if you feel this was done in error.