[7.8] Changed actions API endpoints urls to follow Kibana STYLEGUIDE (#65936)

[YulNaumenko]

Backports the following commits to 7.8:

• Changed actions API endpoints urls to follow Kibana STYLEGUIDE (Changed actions API endpoints urls to follow Kibana STYLEGUIDE #65936)

[kibanamachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request
• Commit: bc4588e
• Pipeline Steps (look for red circles / failed steps)
• Interpreting CI Failures

Failed CI Steps

• Execute x-pack-intake

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Test Failures

Kibana Pipeline / x-pack-intake-agent / X-Pack Jest Tests.x-pack/plugins/siem/public/containers/case.Case Configuration API getActionLicense check url, method, signal

Link to Jenkins

Standard Out

Failed Tests Reporter:
  - Test has not failed recently on tracked branches

Stack Trace

Error: expect(jest.fn()).toHaveBeenCalledWith(...expected)

- Expected
+ Received

- "/api/action/types",
+ "/api/actions/list_action_types",
  {"method": "GET", "signal": {}},

Number of calls: 1
    at Object.test (/var/lib/jenkins/workspace/elastic+kibana+pipeline-pull-request/kibana/x-pack/plugins/siem/public/containers/case/api.test.tsx:91:25)

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Kibana Pipeline / x-pack-intake-agent / X-Pack Jest Tests.x-pack/plugins/siem/public/containers/case.Case Configuration API pushToService check url, method, signal

Link to Jenkins

Standard Out

Failed Tests Reporter:
  - Test has not failed recently on tracked branches

Stack Trace

Error: expect(jest.fn()).toHaveBeenCalledWith(...expected)

- Expected
+ Received

- "/api/action/connectorId/_execute",
+ "/api/actions/connectorId/_execute",
  {"body": "{\"params\":{\"subAction\":\"pushToService\",\"subActionParams\":{\"actionBy\":{\"fullName\":\"Leslie Knope\",\"username\":\"lknope\",\"email\":\"[email protected]\"},\"caseId\":\"basic-case-id\",\"createdAt\":\"2020-02-19T23:06:33.798Z\",\"createdBy\":{\"fullName\":\"Leslie Knope\",\"username\":\"lknope\",\"email\":\"[email protected]\"},\"externalId\":null,\"title\":\"what a cool value\",\"commentId\":null,\"updatedAt\":\"2020-02-19T23:06:33.798Z\",\"updatedBy\":{\"fullName\":\"Leslie Knope\",\"username\":\"lknope\",\"email\":\"[email protected]\"},\"description\":\"nice\",\"comments\":null}}}", "method": "POST", "signal": {}},

Number of calls: 1
    at Object.test (/var/lib/jenkins/workspace/elastic+kibana+pipeline-pull-request/kibana/x-pack/plugins/siem/public/containers/case/api.test.tsx:419:25)

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@elasticmachine merge upstream