[optimizer] pretty-print jest snapshots to help reviews

[spalger]

#119107 ended up triggering an update to the bundle saved in a Jest snapshot. This snapshot isn't massive, but it's too large to spot a little change so I'd like to format the code with prettier before snapshotting it so that we can spot changes more easily.

[elasticmachine]

Pinging @elastic/kibana-operations (Team:Operations)

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: ac5a471
• Storybooks Preview

Test Failures

• [job] [logs] Default CI Group #5 / saved objects spaces only enabled _bulk_create within the default space should return 200 success [isolatedtype/space1-isolatedtype-id,isolatedtype/space2-isolatedtype-id,dashboard/new-dashboard-id,sharedtype/new-sharedtype-id,globaltype/new-globaltype-id,isolatedtype/new-other-space-id,sharecapabletype/new-other-space-id,sharedtype/new-each-space-id,sharedtype/new-all-spaces-id,resolvetype/alias-match] and bad request [hiddentype/any,isolatedtype/new-other-space-id,sharecapabletype/new-other-space-id] and conflict [isolatedtype/defaultspace-isolatedtype-id,sharedtype/all_spaces,sharedtype/default_and_space_1,sharedtype/only_space_1,sharedtype/only_space_2,sharecapabletype/only_default_space,sharecapabletype/only_space_1,globaltype/globaltype-id,resolvetype/alias-match]

Metrics [docs]

✅ unchanged

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[kibanamachine]

💔 Backport failed

Status	Branch	Result
✅	8.0
❌	7.16	Commit could not be cherrypicked due to conflicts

Successful backport PRs will be merged automatically after passing CI.

To backport manually run:
node scripts/backport --pr 119404