Include submodules to OIDC testing. (mongodb#1703)

Author: vbabanin

.evergreen/.evg.yml

@@ -838,6 +838,8 @@ functions:
             export K8S_DRIVERS_TAR_FILE=/tmp/mongo-java-driver.tar
             git archive -o $K8S_DRIVERS_TAR_FILE HEAD
             tar -rf $K8S_DRIVERS_TAR_FILE .git
+            # Loop through all submodule directories and append to the archive
+            git submodule status --recursive | awk '{ print $2 }' | xargs tar -rf "$K8S_DRIVERS_TAR_FILE"
             export K8S_TEST_CMD="OIDC_ENV=k8s VARIANT=${VARIANT} ./.evergreen/run-mongodb-oidc-test.sh"
             bash $DRIVERS_TOOLS/.evergreen/auth_oidc/k8s/setup-pod.sh
             bash $DRIVERS_TOOLS/.evergreen/auth_oidc/k8s/run-self-test.sh