ci(NODE-6986): always run perf tests on mainline commits (#4558)

Author: baileympearson

.evergreen/config.yml

@@ -3612,6 +3612,7 @@ buildvariants:
       - run-spec-benchmark-tests-node-server-logging
     tags:
       - performance
+    activate: true
   - name: rhel8-custom-dependency-tests
     display_name: Custom Dependency Version Test
     run_on: rhel80-large

.evergreen/generate_evergreen_tasks.js

@@ -788,7 +788,8 @@ function addPerformanceTasks() {
     display_name: 'Performance Test',
     run_on: 'rhel90-dbx-perf-large',
     tasks: tasks.map(({ name }) => name),
-    tags: ['performance']
+    tags: ['performance'],
+    activate: true
   });
 }
 addPerformanceTasks();