ci(deps): update swatinem/rust-cache action to v2.7.1 (#427)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [Swatinem/rust-cache](https://togithub.com/Swatinem/rust-cache) |
action | patch | `v2.7.0` -> `v2.7.1` |

---

### Release Notes

<details>
<summary>Swatinem/rust-cache (Swatinem/rust-cache)</summary>

###
[`v2.7.1`](https://togithub.com/Swatinem/rust-cache/compare/v2.7.0...v2.7.1)

[Compare
Source](https://togithub.com/Swatinem/rust-cache/compare/v2.7.0...v2.7.1)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

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.github/workflows/build.yml

@@ -58,7 +58,7 @@ jobs:
         with:
           toolchain: stable
           target: ${{ matrix.target }}
-      - uses: Swatinem/rust-cache@a95ba195448af2da9b00fb742d14ffaaf3c21f43 # v2.7.0
+      - uses: Swatinem/rust-cache@3cf7f8cc28d1b4e7d01e3783be10a97d55d483c8 # v2.7.1
         with:
           key: ${{ matrix.target }}
       - name: Install cross