chore(deps): bump actions/download-artifact from 5.0.0 to 6.0.0 [skip ci]

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5.0.0 to 6.0.0.
Release notes

*Sourced from [actions/download-artifact's releases](https://github.com/actions/download-artifact/releases).*

> v6.0.0
> ------
>
> What's Changed
> --------------
>
> **BREAKING CHANGE:** this update supports Node `v24.x`. This is not a breaking change per-se but we're treating it as such.
>
> * Update README for download-artifact v5 changes by [`@​yacaovsnc`](https://github.com/yacaovsnc) in [actions/download-artifact#417](https://redirect.github.com/actions/download-artifact/pull/417)
> * Update README with artifact extraction details by [`@​yacaovsnc`](https://github.com/yacaovsnc) in [actions/download-artifact#424](https://redirect.github.com/actions/download-artifact/pull/424)
> * Readme: spell out the first use of GHES by [`@​danwkennedy`](https://github.com/danwkennedy) in [actions/download-artifact#431](https://redirect.github.com/actions/download-artifact/pull/431)
> * Bump `@actions/artifact` to `v4.0.0`
> * Prepare `v6.0.0` by [`@​danwkennedy`](https://github.com/danwkennedy) in [actions/download-artifact#438](https://redirect.github.com/actions/download-artifact/pull/438)
>
> New Contributors
> ----------------
>
> * [`@​danwkennedy`](https://github.com/danwkennedy) made their first contribution in [actions/download-artifact#431](https://redirect.github.com/actions/download-artifact/pull/431)
>
> **Full Changelog**: <actions/download-artifact@v5...v6.0.0>


Commits

* [`018cc2c`](actions/download-artifact@018cc2c) Merge pull request [#438](https://redirect.github.com/actions/download-artifact/issues/438) from actions/danwkennedy/prepare-6.0.0
* [`815651c`](actions/download-artifact@815651c) Revert "Remove `github.dep.yml`"
* [`bb3a066`](actions/download-artifact@bb3a066) Remove `github.dep.yml`
* [`fa1ce46`](actions/download-artifact@fa1ce46) Prepare `v6.0.0`
* [`4a24838`](actions/download-artifact@4a24838) Merge pull request [#431](https://redirect.github.com/actions/download-artifact/issues/431) from danwkennedy/patch-1
* [`5e3251c`](actions/download-artifact@5e3251c) Readme: spell out the first use of GHES
* [`abefc31`](actions/download-artifact@abefc31) Merge pull request [#424](https://redirect.github.com/actions/download-artifact/issues/424) from actions/yacaovsnc/update\_readme
* [`ac43a60`](actions/download-artifact@ac43a60) Update README with artifact extraction details
* [`de96f46`](actions/download-artifact@de96f46) Merge pull request [#417](https://redirect.github.com/actions/download-artifact/issues/417) from actions/yacaovsnc/update\_readme
* [`7993cb4`](actions/download-artifact@7993cb4) Remove migration guide for artifact download changes
* Additional commits viewable in [compare view](actions/download-artifact@634f93c...018cc2c)
  
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Author: mergify[bot]

.github/workflows/mvn-test.yml

@@ -416,19 +416,19 @@ jobs:
     if: success() || failure()
     steps:
       - name: Download unit test coverage reports
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
         with:
           name: unit-coverage-reports
           path: unit-coverage
 
       - name: Download unit test coverage reports
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
         with:
           name: slow-unit-coverage-reports
           path: slow-unit-coverage
 
       - name: Download integration test coverage reports
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
         with:
           name: integration-coverage-reports
           path: integration-coverage