Cleanup after v3.35.3 release
### Improvements
-- [plugins] Plugin download urls now support GitHub as a first class url schema. For example "github://api.github.com/pulumiverse".
- [#9984](https://github.com/pulumi/pulumi/pull/9984)
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-- [nodejs] No longer roundtrips requests for the stack URN via the engine.
- [#9680](https://github.com/pulumi/pulumi/pull/9680)
-
### Bug Fixes
-- [cli] `pulumi convert` supports provider packages without a version.
- [#9976](https://github.com/pulumi/pulumi/pull/9976)
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-- [cli] Revert changes to how --target works. This means that non-targeted resources do need enough valid inputs to pass Check.
- [#10024](https://github.com/pulumi/pulumi/pull/10024)
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