Attempting to fix ci pipeline (elastic#6161)

* modifications to ci pipeline

.buildkite/pipeline.yml

@@ -35,7 +35,6 @@ steps:
 
       - label: ":go: checks"
         commands:
-          - touch .env
           - make check-license-header check-predicates shellcheck reattach-pv
 
   - group: tests

.ci/Makefile

@@ -14,6 +14,7 @@ vault := ../hack/retry.sh 5 vault
 
 # This is set to avoid the issue described in https://github.com/hashicorp/vault/issues/6710
 VAULT_CLIENT_TIMEOUT = 120
+VAULT_ROOT_PATH ?= secret/devops-ci/cloud-on-k8s
 
 # BUILD_ID is present during run on Jenkins machine, but not on dev box, hence using it here to distinguish between those cases
 ifndef VAULT_TOKEN

Makefile

@@ -186,6 +186,7 @@ manifest-gen-test:
 
 shellcheck:
 	# --external-sources because .buildkite/scripts/common/get-test-artifacts.sh source .env
+	@[[ ! -f .env ]] && touch .env || true
 	shellcheck --external-sources $(shell find . -type f -name "*.sh" -not -path "./vendor/*")
 
 upgrade-test: docker-build docker-push