Ensure DA refers to current month

ee/app/assets/javascripts/analytics/devops_report/devops_adoption/constants.js

@@ -37,7 +37,7 @@ export const DEVOPS_ADOPTION_STRINGS = {
     ),
     tableHeader: {
       text: s__(
-        'DevopsAdoption|Feature adoption is based on usage in the last calendar month. Last updated: %{timestamp}.',
+        'DevopsAdoption|Feature adoption is based on usage in the current calendar month. Last updated: %{timestamp}.',
       ),
       button: s__('DevopsAdoption|Add/remove groups'),
       buttonTooltip: sprintf(s__('DevopsAdoption|Maximum %{maxSegments} groups allowed'), {

ee/spec/frontend/analytics/devops_report/devops_adoption/components/devops_adoption_app_spec.js

@@ -380,7 +380,7 @@ describe('DevopsAdoptionApp', () => {
 
         it('displays the header text', () => {
           const text =
-            'Feature adoption is based on usage in the last calendar month. Last updated: 2020-10-31 23:59.';
+            'Feature adoption is based on usage in the current calendar month. Last updated: 2020-10-31 23:59.';
           expect(getByText(wrapper.element, text)).not.toBeNull();
         });
 

locale/gitlab.pot

@@ -11271,7 +11271,7 @@ msgstr ""
 msgid "DevopsAdoption|DevOps adoption tracks the use of key features across your favorite groups. Add a group to the table to begin."
 msgstr ""
 
-msgid "DevopsAdoption|Feature adoption is based on usage in the last calendar month. Last updated: %{timestamp}."
+msgid "DevopsAdoption|Feature adoption is based on usage in the current calendar month. Last updated: %{timestamp}."
 msgstr ""
 
 msgid "DevopsAdoption|Filter by name"