ci(deps): update swatinem/rust-cache action to v2.6.2 (#376)

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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 | `v2.6.0` -> `v2.6.2` |

---

### Release Notes

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

###
[`v2.6.2`](https://togithub.com/Swatinem/rust-cache/releases/tag/v2.6.2)

[Compare
Source](https://togithub.com/Swatinem/rust-cache/compare/v2.6.1...v2.6.2)

##### What's Changed

- dep: Use `smol-toml` instead of `toml` by
[@&#8203;NobodyXu](https://togithub.com/NobodyXu) in
[Swatinem/rust-cache#164

**Full Changelog**:
Swatinem/rust-cache@v2...v2.6.2

###
[`v2.6.1`](https://togithub.com/Swatinem/rust-cache/releases/tag/v2.6.1)

[Compare
Source](https://togithub.com/Swatinem/rust-cache/compare/v2.6.0...v2.6.1)

-   Fix hash contributions of `Cargo.lock`/`Cargo.toml` files.

</details>

---

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.github/workflows/build.yml

@@ -58,7 +58,7 @@ jobs:
         with:
           toolchain: stable
           target: ${{ matrix.target }}
-      - uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+      - uses: Swatinem/rust-cache@e207df5d269b42b69c8bc5101da26f7d31feddb4 # v2.6.2
         with:
           key: ${{ matrix.target }}
       - name: Install cross