fix: allow publishing to Snap Store to be disabled with snap specific publish options

[BrandonXLF]

Per the first annotation at https://www.electron.build/publish, it should be possible to disable publishing to the Snap Store by explicitly not listing Snap Store in snap.publisher. This was possible until #7908.

[changeset-bot]

🦋 Changeset detected

Latest commit: d5f3fd5

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

This PR includes changesets to release 8 packages

Name	Type
app-builder-lib	Patch
dmg-builder	Patch
electron-builder-squirrel-windows	Patch
electron-builder	Patch
electron-forge-maker-appimage	Patch
electron-forge-maker-nsis-web	Patch
electron-forge-maker-nsis	Patch
electron-forge-maker-snap	Patch

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[mmaietta]

Please see build errors. Quick excerpt:

Error: packages/app-builder-lib/src/targets/snap.ts(275,5): error TS2322: Type '{ provider: string; }' is not assignable to type 'SnapStoreOptions'.
  Types of property 'provider' are incompatible.
    Type 'string' is not assignable to type '"snapStore"'.
Error: packages/app-builder-lib/src/targets/snap.ts(298,3): error TS2322: Type '{ provider: string; }' is not assignable to type 'SnapStoreOptions'.
  Types of property 'provider' are incompatible.
    Type 'string' is not assignable to type '"snapStore"'.

[mmaietta]

Wait, I'm not sure why HoistedNodeModuleTest snapshot needed to be updated. Let me test on latest master and see if some fixture dependency changed as I'd like to isolate the changes of this PR to snaps if possible

[BrandonXLF]

Wait, I'm not sure why HoistedNodeModuleTest snapshot needed to be updated. Let me test on latest master and see if some fixture dependency changed as I'd like to isolate the changes of this PR to snaps if possible

Sounds good, I'm also quite confused by it.