Fix workflow typo

Author: HoloRin

.github/workflows/update-rbe-images.yaml

@@ -29,7 +29,7 @@ jobs:
       run: |
         # buildbuddy caches the container image, so we must use a specific sha to ensure
         # the latest is used
-        echo "Retrieving current digenst for ${IMAGE}:${TAG}..."
+        echo "Retrieving current digest for ${IMAGE}:${TAG}"
         DIGEST="$(skopeo inspect --format '{{.Digest}}' docker://${IMAGE}:${TAG})"
         echo "Will use ${IMAGE}@${DIGEST}"
         sudo npm install --global --silent @bazel/buildozer