MDL-64066 behat: increase data export sizes, we were hitting them

With MDL-63660 we changed to a bundled moodle.css approach, that
made dowloaded exports size to increase. Although the expected
sizes already were raised in the issue, it seems that some of
them were not enough, so increasing a little bit more.

Side note, we have MDL-63399 about to try to change these tests...

admin/tool/dataprivacy/tests/behat/dataexport.feature

@@ -46,7 +46,7 @@ Feature: Data export from the privacy API
     And I reload the page
     And I should see "Download ready" in the "Victim User 1" "table_row"
     And I open the action menu in "Victim User 1" "table_row"
-    And following "Download" should download between "1" and "130000" bytes
+    And following "Download" should download between "1" and "135000" bytes
     And the following config values are set as admin:
       | privacyrequestexpiry | 1 | tool_dataprivacy |
     And I wait "1" seconds
@@ -81,7 +81,7 @@ Feature: Data export from the privacy API
     And I reload the page
     And I should see "Download ready" in the "Export all of my personal data" "table_row"
     And I open the action menu in "Victim User 1" "table_row"
-    And following "Download" should download between "1" and "130000" bytes
+    And following "Download" should download between "1" and "135000" bytes
 
     And the following config values are set as admin:
       | privacyrequestexpiry | 1 | tool_dataprivacy |
@@ -118,7 +118,7 @@ Feature: Data export from the privacy API
     And I reload the page
     And I should see "Download ready" in the "Victim User 1" "table_row"
     And I open the action menu in "Victim User 1" "table_row"
-    And following "Download" should download between "1" and "130000" bytes
+    And following "Download" should download between "1" and "135000" bytes
 
     And the following config values are set as admin:
       | privacyrequestexpiry | 1 | tool_dataprivacy |