add missing big sur test

Author: gagik

.evergreen.yml

@@ -15254,6 +15254,18 @@ buildvariants:
       mongosh_test_e2e_force_fips: ""
     tasks:
       - name: compile_artifact
+  - name: e2e_tests_darwin
+    display_name: "MacOS Big Sur (E2E tests)"
+    run_on: macos-11
+    tags: []
+    expansions:
+      executable_os_id: "darwin-x64"
+      disable_openssl_shared_config_for_bundled_openssl: false
+      node_js_version: "20.18.1"
+      mongosh_server_test_version: "stable-enterprise"
+      mongosh_test_e2e_force_fips: ""
+    tasks:
+      - name: e2e_tests_darwin
   - name: build_darwin_arm64
     display_name: "MacOS Big Sur arm64 (Build)"
     run_on: macos-11-arm64

.evergreen/evergreen.yml.in

@@ -571,6 +571,13 @@ const ALL_E2E_TEST_BUILD_VARIANTS =  [
     executableOsId: "darwin-x64",
     mVersion: "stable",
   },
+  {
+    displayName: "MacOS Big Sur",
+    name: "darwin",
+    runOn: "macos-11",
+    executableOsId: "darwin-x64",
+    mVersion: "stable",
+  },
   {
     isBuildOnly: true,
     displayName: "MacOS Big Sur arm64",
@@ -631,8 +638,6 @@ const ALL_E2E_TEST_BUILD_VARIANTS =  [
   ].filter(text => text).join(' ');
 
   let compileBuildVariant = RELEASE_PACKAGE_MATRIX.find((pkg) => pkg.executableOsId == executableOsId)?.compileBuildVariant;
-  // We have a separate build variant for win32
-  if (compileBuildVariant == 'win32') compileBuildVariant = 'build_win32';
 
   return ({
     ...rest,