Fix wrong version check leftover (#46)

Author: e-minguez

.github/workflows/sysdig-cli-scanner.yaml

@@ -24,7 +24,7 @@ jobs:
       run:  |
         LATEST_VERSION=$(curl -sL https://download.sysdig.com/scanning/sysdig-cli-scanner/latest_version.txt)
         IMAGE_TAG=$(gh api -H "Accept: application/vnd.github+json" /orgs/sysdiglabs/packages/container/sysdig-cli-scanner/versions | jq -r 'sort_by(.created_at) | last | .metadata.container.tags[0]')
-        if [ ! -f ${GITHUB_WORKSPACE}/cache/latest_version.txt ] || [ ${LATEST_VERSION} != ${IMAGE_TAG} ]; then
+        if [[ ${LATEST_VERSION} != ${IMAGE_TAG} ]]; then
           echo "Container versions differ, building ${LATEST_VERSION}"
           echo "IMAGE_TAG=${LATEST_VERSION}" >> ${GITHUB_ENV}
         else