Upgrade to EUI 3.4.0

[jen-huang]

Upgrade to EUI 3.4.0 to maintain parity with 6.4 upgrade to EUI 3.0.4 (#21867).

[nreese]

lgtm with green CI
code review, poked around Kibana in chrome

[elasticmachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request

01:38:53    │ proc  [ftr]            └- ✖ fail: "apis xpack_main Settings /api/settings with trial license clusters should load multiple clusters"
01:38:53    │ proc  [ftr]            │       
01:38:53    │ proc  [ftr]            │         Error: expected false to sort of equal true
01:38:53    │ proc  [ftr]            │         + expected - actual
01:38:53    │ proc  [ftr]            │       
01:38:53    │ proc  [ftr]            │         -false
01:38:53    │ proc  [ftr]            │         +true
01:38:53    │ proc  [ftr]            │         
01:38:53    │ proc  [ftr]            │         at Assertion.assert (node_modules/expect.js/index.js:96:13)
01:38:53    │ proc  [ftr]            │         at Assertion.eql (node_modules/expect.js/index.js:230:10)
01:38:53    │ proc  [ftr]            │         at Context.it (test/api_integration/apis/xpack_main/settings/settings.js:37:59)
01:38:53    │ proc  [ftr]            │         at <anonymous>

[jen-huang]

Retest

[elasticmachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request

[nreese]

Keeps failing on the same test

fail: "apis xpack_main Settings /api/settings with trial license clusters should load multiple clusters"
05:14:23    │ proc  [ftr]            │       
05:14:23    │ proc  [ftr]            │         Error: expected false to sort of equal true
05:14:23    │ proc  [ftr]            │         + expected - actual
05:14:23    │ proc  [ftr]            │       
05:14:23    │ proc  [ftr]            │         -false
05:14:23    │ proc  [ftr]            │         +true

I am also seeing those failures in another PR #21861 so maybe the test is broken in master?

[jen-huang]

Yep, it is. #21882 is fixing it.

[jen-huang]

Rebased with master to get the above test fix in. 🤞

[elasticmachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request

[nreese]

jenkins, test this

[elasticmachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request