test(NODE-3777): install csfle for all test runs

Author: durran

.evergreen/run-tests.sh

@@ -41,13 +41,13 @@ if [[ -z "${CLIENT_ENCRYPTION}" ]]; then
   unset AWS_ACCESS_KEY_ID;
   unset AWS_SECRET_ACCESS_KEY;
 else
-  npm install mongodb-client-encryption@">=2.0.0-beta.3"
   pip install --upgrade boto3
-
   # Get access to the AWS temporary credentials:
   echo "adding temporary AWS credentials to environment"
   # CSFLE_AWS_TEMP_ACCESS_KEY_ID, CSFLE_AWS_TEMP_SECRET_ACCESS_KEY, CSFLE_AWS_TEMP_SESSION_TOKEN
   . $DRIVERS_TOOLS/.evergreen/csfle/set-temp-creds.sh
 fi
 
+npm install mongodb-client-encryption@">=2.0.0-beta.3"
+
 AUTH=$AUTH SINGLE_MONGOS_LB_URI=${SINGLE_MONGOS_LB_URI} MULTI_MONGOS_LB_URI=${MULTI_MONGOS_LB_URI} MONGODB_API_VERSION=${MONGODB_API_VERSION} MONGODB_UNIFIED_TOPOLOGY=${UNIFIED} MONGODB_URI=${MONGODB_URI} LOAD_BALANCER=${LOAD_BALANCER} npm run ${TEST_NPM_SCRIPT}