Fix memory leak in error path

[AlecAivazis]

This PR fixes a memory leak in the cache that was found as part of the investigation into #1294. This PR does not fix the original issue since it requires some additional thinking and there is a work-around

To help everyone out, please make sure your PR does the following:

• Update the first line to point to the ticket that this PR fixes
• Add a message that clearly describes the fix
• If applicable, add a test that would fail without this fix
• Make sure the unit and integration tests pass locally with pnpm run tests and cd integration && pnpm run tests
• Includes a changeset if your fix affects the user with pnpm changeset

[changeset-bot]

🦋 Changeset detected

Latest commit: e5240df

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

This PR includes changesets to release 8 packages

Name	Type
houdini	Patch
houdini-adapter-auto	Patch
houdini-adapter-cloudflare	Patch
houdini-adapter-node	Patch
houdini-react	Patch
houdini-svelte	Patch
houdini-plugin-svelte-global-stores	Patch
create-houdini	Patch

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