Change helper text to service ping

app/assets/javascripts/pages/admin/application_settings/metrics_and_profiling/usage_statistics.js

 import { __ } from '~/locale';
 
-export const HELPER_TEXT_USAGE_PING_DISABLED = __(
+export const HELPER_TEXT_SERVICE_PING_DISABLED = __(
   'To enable Registration Features, make sure "Enable service ping" is checked.',
 );
 
-export const HELPER_TEXT_USAGE_PING_ENABLED = __(
+export const HELPER_TEXT_SERVICE_PING_ENABLED = __(
   'You can enable Registration Features because Service Ping is enabled. To continue using Registration Features in the future, you will also need to register with GitLab via a new cloud licensing service.',
 );
 
@@ -18,8 +18,8 @@ function setHelperText(usagePingCheckbox) {
   );
 
   helperTextId.textContent = usagePingCheckbox.checked
-    ? HELPER_TEXT_USAGE_PING_ENABLED
-    : HELPER_TEXT_USAGE_PING_DISABLED;
+    ? HELPER_TEXT_SERVICE_PING_ENABLED
+    : HELPER_TEXT_SERVICE_PING_DISABLED;
 
   usagePingFeaturesLabel.classList.toggle('gl-cursor-not-allowed', !usagePingCheckbox.checked);
 

spec/frontend/pages/admin/application_settings/metrics_and_profiling/usage_statistics_spec.js

 import initSetHelperText, {
-  HELPER_TEXT_USAGE_PING_DISABLED,
-  HELPER_TEXT_USAGE_PING_ENABLED,
+  HELPER_TEXT_SERVICE_PING_DISABLED,
+  HELPER_TEXT_SERVICE_PING_ENABLED,
 } from '~/pages/admin/application_settings/metrics_and_profiling/usage_statistics';
 
 describe('UsageStatistics', () => {
@@ -23,12 +23,12 @@ describe('UsageStatistics', () => {
 
   const expectEnabledUsagePingFeaturesCheckBox = () => {
     expect(usagePingFeaturesCheckBox.classList.contains('gl-cursor-not-allowed')).toBe(false);
-    expect(usagePingFeaturesHelperText.textContent).toEqual(HELPER_TEXT_USAGE_PING_ENABLED);
+    expect(usagePingFeaturesHelperText.textContent).toEqual(HELPER_TEXT_SERVICE_PING_ENABLED);
   };
 
   const expectDisabledUsagePingFeaturesCheckBox = () => {
     expect(usagePingFeaturesLabel.classList.contains('gl-cursor-not-allowed')).toBe(true);
-    expect(usagePingFeaturesHelperText.textContent).toEqual(HELPER_TEXT_USAGE_PING_DISABLED);
+    expect(usagePingFeaturesHelperText.textContent).toEqual(HELPER_TEXT_SERVICE_PING_DISABLED);
   };
 
   describe('Registration Features checkbox', () => {