[7.x] Upgrade EUI to v30.5.1 (#84677)

[chandlerprall]

Backports the following commits to 7.x:

• Upgrade EUI to v30.5.1 (Upgrade EUI to v30.5.1 #84677)

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 2bef3e9

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
advancedSettings	919.7KB	919.7KB	+3.0B
canvas	1.3MB	1.3MB	+59.0B
dashboard	197.3KB	197.3KB	+1.0B
data	244.9KB	244.9KB	-42.0B
discover	452.6KB	452.6KB	-20.0B
enterpriseSearch	724.7KB	724.7KB	-4.0B
fleet	1.1MB	1.1MB	+3.0B
graph	1.3MB	1.3MB	-3.0B
home	214.2KB	214.2KB	-3.0B
infra	2.7MB	2.7MB	+1.0B
ingestPipelines	822.0KB	822.0KB	-6.0B
lens	1004.0KB	1005.3KB	+1.4KB
ml	5.2MB	5.2MB	+104.0B
monitoring	950.0KB	950.0KB	+59.0B
savedObjectsManagement	187.9KB	187.9KB	-3.0B
security	787.6KB	787.7KB	+160.0B
securitySolution	8.0MB	8.0MB	+714.0B
timelion	384.0KB	384.1KB	+24.0B
visDefaultEditor	300.4KB	300.4KB	-3.0B
visTypeTimelion	83.6KB	83.6KB	+14.0B
visTypeVega	1.5MB	1.5MB	+17.0B
visTypeVislib	702.7KB	702.8KB	+34.0B
total			+2.4KB

Distributable file count

id	before	after	diff
default	43816	44128	+312

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
console	29.4KB	29.4KB	-3.0B
core	548.0KB	548.4KB	+380.0B
dashboard	327.9KB	327.8KB	-14.0B
data	990.8KB	990.9KB	+72.0B
embeddable	188.3KB	188.3KB	+32.0B
esUiShared	278.3KB	278.3KB	-3.0B
globalSearchBar	33.2KB	33.2KB	-4.0B
inspector	52.4KB	52.3KB	-14.0B
kibanaReact	132.3KB	132.7KB	+368.0B
maps	151.2KB	151.5KB	+226.0B
mapsLegacy	94.3KB	94.3KB	+14.0B
searchprofiler	48.6KB	48.6KB	+13.0B
uiActions	65.3KB	65.3KB	-14.0B
visTypeTimeseries	137.7KB	143.8KB	+6.1KB
total			+7.1KB

Unknown metric groups

@kbn/ui-shared-deps asset size

id	before	after	diff
css	663.5KB	667.1KB	+3.6KB
kbn-ui-shared-deps.@elastic.js	2.4MB	3.2MB	⚠️ +774.8KB
kbn-ui-shared-deps.js	13.6MB	13.5MB	-6.2KB
total			+772.2KB

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