Wrong deploy key in travis "npm releasing" doc

[gturi]

Travis doc displays the following base config to deploy packages to npm:

language: node_js
node_js:
  - "12.13"

deploy:
  provider: npm
  email: "YOUR_EMAIL_ADDRESS"
  api_key: "YOUR_AUTH_TOKEN"

However, the deploy step fails since Travis looks for api_token instead of api_key

[stale]

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