chore(ci): switch to newer macos-11{,-arm64}-gui distros COMPASS-8696 (#6573)

Author: addaleax

.evergreen/buildvariants-and-tasks.in.yml

@@ -82,13 +82,13 @@ const TEST_PACKAGED_APP_BUILD_VARIANTS = [
   {
     name: 'test-packaged-app-macos-11-arm',
     display_name: 'MacOS arm64 11',
-    run_on: 'macos-1100-arm64-gui',
+    run_on: 'macos-11-arm64-gui',
     depends_on: 'package-macos-arm'
   },
   {
     name: 'test-packaged-app-macos-11-x64',
     display_name: 'MacOS x64 11',
-    run_on: 'macos-1100-gui',
+    run_on: 'macos-11-gui',
     patchable: false,
     depends_on: 'package-macos-x64'
   },

.evergreen/buildvariants-and-tasks.yml

@@ -180,7 +180,7 @@ buildvariants:
       - name: test-packaged-app-3
   - name: test-packaged-app-macos-11-arm
     display_name: Test Packaged App MacOS arm64 11
-    run_on: macos-1100-arm64-gui
+    run_on: macos-11-arm64-gui
     patchable: true
     depends_on:
       - name: package-compass
@@ -191,7 +191,7 @@ buildvariants:
       - name: test-packaged-app-3
   - name: test-packaged-app-macos-11-x64
     display_name: Test Packaged App MacOS x64 11
-    run_on: macos-1100-gui
+    run_on: macos-11-gui
     patchable: false
     depends_on:
       - name: package-compass