chore(deps): update actions/cache action to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	major	v2 -> v3

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Release Notes

actions/cache

v3

Compare Source

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[github-actions]

✨ code-server docs for PR #5003 is ready! It will be updated on every commit.

• Host: https://coder.com/docs/code-server/add1c7f
• Last deploy status: success
• Commit: 97e62e0
• Workflow status: https://github.com/coder/code-server/actions/runs/2015731204

[codecov]

Codecov Report

Merging #5003 (add1c7f) into main (5afb26f) will not change coverage.
The diff coverage is n/a.

❗ Current head add1c7f differs from pull request most recent head 97e62e0. Consider uploading reports for the commit 97e62e0 to get more accurate results

@@           Coverage Diff           @@
##             main    #5003   +/-   ##
=======================================
  Coverage   71.58%   71.58%           
=======================================
  Files          29       29           
  Lines        1675     1675           
  Branches      373      373           
=======================================
  Hits         1199     1199           
  Misses        405      405           
  Partials       71       71           

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[jsjoeio]

LGTM