fix vscode publishing with changesets

[acao]

This gets vscode-graphql publishing properly in concert with changesets.

When the workspace is marked private: true, we can't expect postpublish to fire, but postversion should!

[changeset-bot]

🦋 Changeset detected

Latest commit: 3320aa6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
vscode-graphql	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[acao]

The latest changes of this PR are not available as canary, since there are no linked changesets for this PR.

[acao]

The latest changes of this PR are not available as canary, since there are no linked changesets for this PR.

[codecov]

Codecov Report

Merging #2395 (3320aa6) into main (2d91916) will decrease coverage by 0.93%.
The diff coverage is 73.98%.

@@            Coverage Diff             @@
##             main    #2395      +/-   ##
==========================================
- Coverage   65.70%   64.77%   -0.94%     
==========================================
  Files          85       81       -4     
  Lines        5106     5331     +225     
  Branches     1631     1724      +93     
==========================================
+ Hits         3355     3453      +98     
- Misses       1747     1874     +127     
  Partials        4        4              

Impacted Files	Coverage Δ
packages/codemirror-graphql/src/hint.ts	94.73% <ø> (ø)
packages/codemirror-graphql/src/lint.ts	100.00% <ø> (ø)
packages/codemirror-graphql/src/results/mode.ts	47.05% <ø> (ø)
...kages/codemirror-graphql/src/utils/forEachState.ts	100.00% <ø> (ø)
packages/codemirror-graphql/src/utils/hintList.ts	95.65% <ø> (ø)
...ackages/codemirror-graphql/src/utils/info-addon.ts	1.02% <ø> (ø)
...ckages/codemirror-graphql/src/utils/mode-indent.ts	0.00% <0.00%> (ø)
packages/codemirror-graphql/src/variables/hint.ts	89.70% <ø> (ø)
packages/codemirror-graphql/src/variables/mode.ts	79.48% <ø> (ø)
packages/graphiql/src/components/ToolbarMenu.tsx	2.50% <ø> (ø)
... and 78 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2ca7f9e...3320aa6. Read the comment docs.