chore(deps): update cachix/install-nix-action action to v31.10.4 (#416)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[cachix/install-nix-action](https://redirect.github.com/cachix/install-nix-action)
| action | patch | `v31.10.3` → `v31.10.4` |

---

### Release Notes

<details>
<summary>cachix/install-nix-action (cachix/install-nix-action)</summary>

###
[`v31.10.4`](https://redirect.github.com/cachix/install-nix-action/releases/tag/v31.10.4)

[Compare
Source](https://redirect.github.com/cachix/install-nix-action/compare/v31.10.3...v31.10.4)

##### What's Changed

- nix: 2.34.4 -> 2.34.5 by
[@&#8203;github-actions](https://redirect.github.com/github-actions)\[bot]
in
[#&#8203;273](https://redirect.github.com/cachix/install-nix-action/pull/273)
**\[SECURITY]** Fixes a root privilege escalation vulnerability via
sandbox escape
<GHSA-g3g9-5vj6-r3gj>

**Full Changelog**:
<cachix/install-nix-action@v31.10.3...v31.10.4>

</details>

---

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♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
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🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
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---

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.github/workflows/flow-pr.yml

@@ -26,7 +26,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           persist-credentials: false
-      - uses: cachix/install-nix-action@96951a368ba55167b55f1c916f7d416bac6505fe # v31.10.3
+      - uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31.10.4
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Try to update nix flake

.github/workflows/flow-release.yml

@@ -24,7 +24,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           persist-credentials: false
-      - uses: cachix/install-nix-action@96951a368ba55167b55f1c916f7d416bac6505fe # v31.10.3
+      - uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31.10.4
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Import GPG key