chore(github-action): update actions/cache digest to 6849a64 (#28161)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/cache](https://redirect.github.com/actions/cache) | action |
digest | `3624ceb` -> `6849a64` |

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

---

### Configuration

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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

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This PR has been generated by [Renovate
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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC4xMjkuMiIsInVwZGF0ZWRJblZlciI6IjM4LjEyOS4yIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInJlbm92YXRlL2NvbnRhaW5lciIsInJlbm92YXRlL2dpdGh1Yi1hY3Rpb24iLCJyZW5vdmF0ZS9naXRodWItcmVsZWFzZSIsInR5cGUvZGlnZXN0Il19-->

.github/workflows/charts-release.yaml

@@ -68,7 +68,7 @@ jobs:
       - name: Cache Changelog
         id: cache-changelog
         if: github.event_name == 'push' && needs.check_changes.outputs.changes_detected == 'true'
-        uses: actions/cache@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4
+        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
         with:
           path: changelog.json.gz
           key: ${{ env.CHANGELOG_CACHE_KEY }}
@@ -222,7 +222,7 @@ jobs:
 
       - name: Setup astro Cache
         if: needs.check_changes.outputs.changes_detected == 'true'
-        uses: actions/cache@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4
+        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
         with:
           # Cache for build and optimized images.
           key: astro-${{ hashFiles('package-lock.json') }}
@@ -231,7 +231,7 @@ jobs:
 
       - name: Setup npm Cache
         if: needs.check_changes.outputs.changes_detected == 'true'
-        uses: actions/cache@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4
+        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
         with:
           # Cache for npm
           path: ~/website/.npm
@@ -241,7 +241,7 @@ jobs:
       - name: Setup node_modules Cache
         id: modulescache
         if: needs.check_changes.outputs.changes_detected == 'true'
-        uses: actions/cache@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4
+        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
         with:
           # Cache for npm and optimized images.
           path: ./website/node_modules

.github/workflows/common-tests.yaml

@@ -99,7 +99,7 @@ jobs:
           version: ${{ matrix.helm-version }}
 
       - name: Cache helm plugins
-        uses: actions/cache@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4
+        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
         with:
           path: |
             /home/runner/.local/share/helm/plugins/helm-unittest