aws codeartifact login missing auth-token for Node8

### Describe the bug

As described [here|https://docs.aws.amazon.com/codeartifact/latest/ug/npm-yarn.html#npm-yarn-configure-login], `aws codeartifact login` command is adding `always-auth=true` in specific cases.

In the following setup, the always-auth=true should be added to `~/.npmrc`, otherwise `yarn install` will yield random errors.

### Expected Behavior

yarn install works.

### Current Behavior

yarn fails to find random packages in CodeArtifact repository, see Support Case #9917874041.

### Reproduction Steps

As above.

### Possible Solution

Add manually `always-auth=true` as the first line of ~/.npmrc

### Additional Information/Context

_No response_

### CLI version used

1.152.0

### Environment details (OS name and version, etc.)

MacOS