fix(infrastructure): add declaration package.json

[moog16]

fixes #567

[googlebot]

So there's good news and bad news.

👍 The good news is that everyone that needs to sign a CLA (the pull request submitter and all commit authors) have done so. Everything is all good there.

😕 The bad news is that it appears that one or more commits were authored or co-authored by someone other than the pull request submitter. We need to confirm that all authors are ok with their commits being contributed to this project. Please have them confirm that here in the pull request.

Note to project maintainer: This is a terminal state, meaning the cla/google commit status will not change from this state. It's up to you to confirm consent of all the commit author(s), set the cla label to yes (if enabled on your project), and then merge this pull request when appropriate.

[googlebot]

CLAs look good, thanks!

[codecov-io]

Codecov Report

Merging #572 into rc0.8.0 will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           rc0.8.0     #572   +/-   ##
========================================
  Coverage    94.71%   94.71%           
========================================
  Files           61       61           
  Lines         2554     2554           
  Branches       365      365           
========================================
  Hits          2419     2419           
  Misses          50       50           
  Partials        85       85

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[williamernest]

LGTM