fix(dev-infra): fix error message in `invokeSetNpmDistCommand()` function (#39229)
fix(dev-infra): fix error message in `invokeSetNpmDistCommand()` function (#39229)

In #39135, the commit message string was accidentally changed from a
template literal to a regular string literal. This prevented the
`npmDistTag` variable from being correctly displayed in the error
message.

This commit fixes it by switching it back to a template literal.

NOTE:
This was pointed out in
https://github.com/angular/angular/pull/39135#discussion_r503361412, but
the PR was accidentally merged before the review feedback had been
addressed.

PR Close #39229

angular/dev-infra,angular/dev-infra,angular/dev-infra,angular/dev-infra