chore: bump up vite-plugin-istanbul version to v6 (#6054)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [vite-plugin-istanbul](https://togithub.com/ifaxity/vite-plugin-istanbul) | [`^5.0.0` -> `^6.0.0`](https://renovatebot.com/diffs/npm/vite-plugin-istanbul/5.0.0/6.0.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/vite-plugin-istanbul/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/vite-plugin-istanbul/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/vite-plugin-istanbul/5.0.0/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/vite-plugin-istanbul/5.0.0/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>ifaxity/vite-plugin-istanbul (vite-plugin-istanbul)</summary>

### [`v6.0.0`](https://togithub.com/iFaxity/vite-plugin-istanbul/releases/tag/v6.0.0)

[Compare Source](https://togithub.com/ifaxity/vite-plugin-istanbul/compare/v5.0.0...v6.0.0)

##### Bug Fixes

-   add regex for vue SFC to prevent instrumenting style and templates ([#&#8203;180](https://togithub.com/ifaxity/vite-plugin-istanbul/issues/180)) ([c8a7ca7](https://togithub.com/ifaxity/vite-plugin-istanbul/commit/c8a7ca771e6b202b310b143a8850151598208578)), closes [#&#8203;96](https://togithub.com/ifaxity/vite-plugin-istanbul/issues/96) [#&#8203;178](https://togithub.com/ifaxity/vite-plugin-istanbul/issues/178) [#&#8203;89](https://togithub.com/ifaxity/vite-plugin-istanbul/issues/89)

-   feat!: update to support vite v5  ([#&#8203;183](https://togithub.com/ifaxity/vite-plugin-istanbul/issues/183)) ([614f8bd](https://togithub.com/ifaxity/vite-plugin-istanbul/commit/614f8bd365f22ded4322fc7dbea8de46ff4feea5)), closes [#&#8203;183](https://togithub.com/ifaxity/vite-plugin-istanbul/issues/183)

##### BREAKING CHANGES

-   updating from espree v9 to v10 deprecates older node versions

-   feat!: update to support vite v5

-   least supported version changed from v2.9.1 to v4

</details>

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package.json

@@ -103,7 +103,7 @@
     "ts-node": "^10.9.2",
     "typescript": "^5.3.3",
     "vite": "^5.1.4",
-    "vite-plugin-istanbul": "^5.0.0",
+    "vite-plugin-istanbul": "^6.0.0",
     "vite-plugin-static-copy": "^1.0.1",
     "vitest": "1.3.1",
     "vitest-fetch-mock": "^0.2.2",