Update actions/cache action to v4.2.0 (#397)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/cache](https://redirect.github.com/actions/cache) | action |
minor | `v4.1.2` -> `v4.2.0` |

---

### Release Notes

<details>
<summary>actions/cache (actions/cache)</summary>

###
[`v4.2.0`](https://redirect.github.com/actions/cache/releases/tag/v4.2.0)

[Compare
Source](https://redirect.github.com/actions/cache/compare/v4.1.2...v4.2.0)

#### ⚠️ Important Changes

The cache backend service has been rewritten from the ground up for
improved performance and reliability.
[actions/cache](https://redirect.github.com/actions/cache) now
integrates with the new cache service (v2) APIs.

The new service will gradually roll out as of **February 1st, 2025**.
The legacy service will also be sunset on the same date. Changes in
these release are **fully backward compatible**.

**We are deprecating some versions of this action**. We recommend
upgrading to version `v4` or `v3` as soon as possible before **February
1st, 2025.** (Upgrade instructions below).

If you are using pinned SHAs, please use the SHAs of versions `v4.2.0`
or `v3.4.0`

If you do not upgrade, all workflow runs using any of the deprecated
[actions/cache](https://redirect.github.com/actions/cache) will fail.

Upgrading to the recommended versions will not break your workflows.

Read more about the change & access the migration guide: [reference to
the
announcement](https://redirect.github.com/actions/cache/discussions/1510).

##### Minor changes

Minor and patch version updates for these dependencies:

- [@&#8203;actions/core](https://redirect.github.com/actions/core):
`1.11.1`
- [@&#8203;actions/io](https://redirect.github.com/actions/io): `1.1.3`
- [@&#8203;vercel/ncc](https://redirect.github.com/vercel/ncc): `0.38.3`

**Full Changelog**: actions/cache@v4...v4.2.0

</details>

---

### Configuration

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

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **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
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---

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---

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View the [repository job
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.github/workflows/main.yml

@@ -43,7 +43,7 @@ jobs:
         run: |
           pip3 install --disable-pip-version-check --progress-bar off 'poetry'
       - name: Cache dependencies
-        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4.1.2
+        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/pyproject.toml') }}