fix plugin

Author: burmudar

test/smoke-test.sh

@@ -13,11 +13,15 @@ deploy_sourcegraph() {
 	cd $(dirname "${BASH_SOURCE[0]}")/..
 	#Deploy sourcegraph
 	if [[ "$TEST_TYPE" == "pure-docker-test" ]]; then
+    # Fix plugin: https://github.com/hashicorp/vagrant/issues/13550
+    sed -i -e 's/exists?/exist?/g' /var/lib/buildkite-agent/.vagrant.d/gems/3.3.8/gems/dotenv-0.11.1/lib/dotenv.rb
 		./test/volume-config.sh
 		timeout 600s ./pure-docker/deploy.sh
 		expect_containers="23"
 	elif [[ "$TEST_TYPE" == "docker-compose-test" ]]; then
-		docker-compose --file docker-compose/docker-compose.yaml up -d -t 600
+    # Fix plugin: https://github.com/hashicorp/vagrant/issues/13550
+    sed -i -e 's/exists?/exist?/g' /var/lib/buildkite-agent/.vagrant.d/gems/3.3.8/gems/dotenv-0.11.1/lib/dotenv.rb
+    docker-compose --file docker-compose/docker-compose.yaml up -d -t 600
 		expect_containers="25"
 	fi