.npmrc with ${..} env can silently break authentication

[akumria]

How are you running Renovate?

Self-hosted Renovate CLI

Which platform you running Renovate on?

GitHub.com

Which version of Renovate are you using?

43.249.7-full

Please tell us more about your question or problem

We have customers who utilise .npmrc with authentication values in them.

Within the .npmrc if the line is:

//artifactory.internal.XXX/artifactory/api/npm/:_auth=${ARTIFACTORY_ENTERPRISE_NPM_AUTH}

However if the lnie is:

//artifactory.internal.XXX/artifactory/api/npm/:_auth = ${ARTIFACTORY_ENTERPRISE_NPM_AUTH}

(notice the spaces)

Then authentication, even if specified within renovate host rules, with different credentials, breaks.

Logs (if relevant)

Logs

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