[CI] Publish to BCR worklow not working.

[marcalff]

Seen in the logs in CI, when publishing opentelemetry-proto 1.10.0 to bcr:

with:
    attest: true
    attestations-dest: attestations
    tag: v1.10.0
    module-version: 1.10.0
    local-registry: bazel-central-registry
    templates-dir: this/.bcr
    gh-token: ***
    github-repository: open-telemetry/opentelemetry-proto
  env:
    REGISTRY_BRANCH: main
    REGISTRY: bazelbuild/bazel-central-registry
    REGISTRY_FORK: open-telemetry/bazel-central-registry
    TAG_NAME: v1.10.0
    VERSION: 1.10.0
/usr/local/bin/node /home/runner/work/_actions/bazel-contrib/publish-to-bcr/ff2c5e3fe8c3b83678df560bfc1cf4d0ba2eb3e1/dist/cli/index.js create-entry --templates-dir=/tmp/templates-Hl0zi8 --local-registry=bazel-central-registry --module-version=1.10.0 --github-repository=open-telemetry/opentelemetry-proto --tag=v1.10.0
Publish to BCR
Did not find configuration file in /tmp/templates-Hl0zi8; setting defaults

Loading template files from /tmp/templates-Hl0zi8
Creating entry for module version 1.10.0 in bazel-central-registry
Fetching release archive https://github.com/open-telemetry/opentelemetry-proto/archive/refs/tags/v1.10.0.tar.gz
The release archive is missing a MODULE.bazel file! This file is needed to form a BCR entry.
Error: The process '/usr/local/bin/node' failed with exit code 1

[tigrannajaryan]

@jsuereth @jmacd you approved the PR that brings bcr. We probably need codeowners in this repo. I don't know anything about bcr so can't help.