Fix spec update action

[sderickson]

Not exactly sure how this worked before. But the last couple runs have been blocked by running on python 2, and running an npm install command that doesn't seem to do anything. This fixes the action, which successfully ran and was merged in #412.

Checklist

General Contributing

• Have you read the Code of Conduct and signed the CLA?

Is This a Code Change?

• Non-code related change (markdown/git settings etc)
• SDK Code Change
• Example/Test Code Change

Validation

• Does tox pass?
• Do the tests pass?

[codecov]

Codecov Report

Merging #413 (f516544) into main (cc10efb) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #413   +/-   ##
=======================================
  Coverage   64.24%   64.24%           
=======================================
  Files          30       30           
  Lines       51600    51600           
  Branches     5741     5741           
=======================================
  Hits        33150    33150           
  Misses      18292    18292           
  Partials      158      158           

Flag	Coverage Δ
integration	64.15% <ø> (ø)
unit	63.66% <ø> (ø)

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