chore(deps): update actions/cache action to v6 (#298)

This PR contains the following updates:

| Package | Type | Update | Change | Pending |
|---|---|---|---|---|
| [actions/cache](https://redirect.github.com/actions/cache) | action |
major | `v5` → `v6` | `v6.1.0` |

---

### Release Notes

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

###
[`v6.0.0`](https://redirect.github.com/actions/cache/releases/tag/v6.0.0)

[Compare
Source](https://redirect.github.com/actions/cache/compare/v6.0.0...v6.0.0)

#### What's Changed

- Update packages, migrate to ESM by
[@&#8203;Samirat](https://redirect.github.com/Samirat) in
[#&#8203;1760](https://redirect.github.com/actions/cache/pull/1760)

**Full Changelog**:
<actions/cache@v5...v6.0.0>

###
[`v6`](https://redirect.github.com/actions/cache/compare/v5.0.5...v6.0.0)

[Compare
Source](https://redirect.github.com/actions/cache/compare/v5.1.0...v6.0.0)

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

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

---

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

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/deviantintegral/har).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yNDIuMiIsInVwZGF0ZWRJblZlciI6IjQzLjI0Mi4yIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/release-please.yml

@@ -47,7 +47,7 @@ jobs:
         run: echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
 
       - name: Cache dependencies
-        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}

.github/workflows/test.yml

@@ -36,7 +36,7 @@ jobs:
         run: echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
 
       - name: Cache dependencies
-        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
@@ -89,7 +89,7 @@ jobs:
         run: echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
 
       - name: Cache dependencies
-        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
@@ -120,7 +120,7 @@ jobs:
         run: echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
 
       - name: Cache dependencies
-        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
@@ -153,7 +153,7 @@ jobs:
         run: echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
 
       - name: Cache dependencies
-        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}