ci: fix workflows

[bobheadxi]

🎟️ Ticket(s): follow-up to #628 , #622

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👷 Changes

• fix publish jobs
• disable the sourcegraph action for LSIF upload
  • there seems to be a new official action in the works: https://github.com/sourcegraph/lsif-upload-action, but it doesn't really work yet (getting unauthenticated errors and whatnot)

🔦 Testing Instructions

n/a

[codecov]

Codecov Report

Merging #629 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #629   +/-   ##
=======================================
  Coverage   55.81%   55.81%           
=======================================
  Files          68       68           
  Lines        3385     3385           
=======================================
  Hits         1889     1889           
  Misses       1253     1253           
  Partials      243      243

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