fix(ci): don't act on invalid github response

Author: lidel

.github/actions/update-with-latest-versions/entrypoint.sh

@@ -51,6 +51,11 @@ update_version() {
     LATEST_VERSION_TAG=`curl -L -H "Accept: application/vnd.github.v3+json" "https://api.github.com/repos/${INPUT_REPOSITORY}/releases/latest" | jq --raw-output ".tag_name"`
     LATEST_VERSION_NUMBER=${LATEST_VERSION_TAG:1}
 
+    if [ "$LATEST_VERSION_TAG" = "null" ]; then
+        echo "https://api.github.com returned null, please re-run this job, if the problem persists this script needs to be rewritten"
+        exit 1
+    fi
+
     echo "Updating documentation files that rely on ${INPUT_VERSION_IDENTIFIER} to ${LATEST_VERSION_TAG}"
 
     while read -r file; do