Make all risk score decimal places consistent (#198450)

## Summary

This PR updates risk scores to use formatter to 2DP instead of basic
Math.round for consistency and accuracy.

![image](https://github.com/user-attachments/assets/ede600ef-acd3-463b-8f0f-8f527271836e)

![image](https://github.com/user-attachments/assets/a49f2a01-e05a-4077-8397-cff18da7cfa5)

![image](https://github.com/user-attachments/assets/599d3bcb-118f-4e32-94e6-ff4aa0a60fa8)

With reverted alert score, showing user and host risk scores still have
formatting:

![image](https://github.com/user-attachments/assets/94cb4d9e-a468-4cb7-b162-74762b134436)

(cherry picked from commit 4b6b1c3)

x-pack/plugins/security_solution/public/entity_analytics/components/entity_analytics_risk_score/columns.tsx

@@ -30,6 +30,7 @@ import {
   SecurityCellActionType,
 } from '../../../common/components/cell_actions';
 import { FormattedRelativePreferenceDate } from '../../../common/components/formatted_date';
+import { formatRiskScore } from '../../common';
 
 type HostRiskScoreColumns = Array<EuiBasicTableColumn<HostRiskScore & UserRiskScore>>;
 
@@ -128,7 +129,7 @@ export const getRiskScoreColumns = (
       if (riskScore != null) {
         return (
           <span data-test-subj="risk-score-truncate" title={`${riskScore}`}>
-            {Math.round(riskScore)}
+            {formatRiskScore(riskScore)}
           </span>
         );
       }

x-pack/plugins/security_solution/public/entity_analytics/components/entity_store/hooks/use_entities_list_columns.tsx

@@ -21,6 +21,7 @@ import { type CriticalityLevels } from '../../../../../common/constants';
 import { ENTITIES_LIST_TABLE_ID } from '../constants';
 import { isUserEntity, sourceFieldToText } from '../helpers';
 import { CRITICALITY_LEVEL_TITLE } from '../../asset_criticality/translations';
+import { formatRiskScore } from '../../../common';
 
 export type EntitiesListColumns = [
   Columns<Entity>,
@@ -149,7 +150,7 @@ export const useEntitiesListColumns = (): EntitiesListColumns => {
         if (riskScore != null) {
           return (
             <span data-test-subj="risk-score-truncate" title={`${riskScore}`}>
-              {Math.round(riskScore)}
+              {formatRiskScore(riskScore)}
             </span>
           );
         }

x-pack/plugins/security_solution/public/entity_analytics/components/host_risk_score_table/columns.tsx

@@ -23,6 +23,7 @@ import { RiskScoreLevel } from '../severity/common';
 import { ENTITY_RISK_LEVEL } from '../risk_score/translations';
 import { CELL_ACTIONS_TELEMETRY } from '../risk_score/constants';
 import { FormattedRelativePreferenceDate } from '../../../common/components/formatted_date';
+import { formatRiskScore } from '../../common';
 
 export const getHostRiskScoreColumns = ({
   dispatchSeverityUpdate,
@@ -82,7 +83,7 @@ export const getHostRiskScoreColumns = ({
       if (riskScore != null) {
         return (
           <span data-test-subj="risk-score-truncate" title={`${riskScore}`}>
-            {Math.round(riskScore)}
+            {formatRiskScore(riskScore)}
           </span>
         );
       }

x-pack/plugins/security_solution/public/entity_analytics/components/user_risk_score_table/columns.tsx

@@ -24,6 +24,7 @@ import { UsersTableType } from '../../../explore/users/store/model';
 import { ENTITY_RISK_LEVEL } from '../risk_score/translations';
 import { CELL_ACTIONS_TELEMETRY } from '../risk_score/constants';
 import { FormattedRelativePreferenceDate } from '../../../common/components/formatted_date';
+import { formatRiskScore } from '../../common';
 
 export const getUserRiskScoreColumns = ({
   dispatchSeverityUpdate,
@@ -85,7 +86,7 @@ export const getUserRiskScoreColumns = ({
       if (riskScore != null) {
         return (
           <span data-test-subj="risk-score-truncate" title={`${riskScore}`}>
-            {Math.round(riskScore)}
+            {formatRiskScore(riskScore)}
           </span>
         );
       }

x-pack/test/security_solution_cypress/cypress/e2e/entity_analytics/hosts/host_risk_tab.cy.ts

@@ -46,7 +46,7 @@ describe('risk tab', { tags: ['@ess'] }, () => {
       kqlSearch('host.name: "siem-kibana" {enter}');
       cy.get(HOST_BY_RISK_TABLE_CELL).eq(4).should('have.text', 'siem-kibana');
       cy.get(HOST_BY_RISK_TABLE_CELL).eq(5).should('have.text', 'Mar 10, 2021 @ 14:51:05.766');
-      cy.get(HOST_BY_RISK_TABLE_CELL).eq(6).should('have.text', '21');
+      cy.get(HOST_BY_RISK_TABLE_CELL).eq(6).should('have.text', '21.00');
       cy.get(HOST_BY_RISK_TABLE_CELL).eq(7).should('have.text', 'Low');
     });
 
@@ -93,7 +93,7 @@ describe('risk tab', { tags: ['@ess'] }, () => {
       kqlSearch('host.name: "siem-kibana" {enter}');
       cy.get(HOST_BY_RISK_TABLE_CELL).eq(4).should('have.text', 'siem-kibana');
       cy.get(HOST_BY_RISK_TABLE_CELL).eq(5).should('have.text', 'Mar 10, 2021 @ 14:51:05.766');
-      cy.get(HOST_BY_RISK_TABLE_CELL).eq(6).should('have.text', '90');
+      cy.get(HOST_BY_RISK_TABLE_CELL).eq(6).should('have.text', '90.00');
       cy.get(HOST_BY_RISK_TABLE_CELL).eq(7).should('have.text', 'Critical');
     });