chore(deps): bump actions/cache from 5.0.5 to 6.0.0

Bumps [actions/cache](https://github.com/actions/cache) from 5.0.5 to 6.0.0.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@27d5ce7...2c8a9bd)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -286,7 +286,7 @@ jobs:
         uses: mozilla-actions/sccache-action@9e7fa8a12102821edf02ca5dbea1acd0f89a2696  # v0.0.10
 
       - name: Cache cargo registry (shared)
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           path: |
             ~/.cargo/registry
@@ -344,7 +344,7 @@ jobs:
 
       - name: Cache cargo registry (shared)
         if: needs.changes.outputs.ci == 'true'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           path: |
             ~/.cargo/registry
@@ -411,7 +411,7 @@ jobs:
 
       - name: Cache cargo registry (shared)
         if: needs.changes.outputs.ci == 'true'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           path: |
             ~/.cargo/registry
@@ -444,7 +444,7 @@ jobs:
         uses: dtolnay/rust-toolchain@631a55b12751854ce901bb631d5902ceb48146f7  # stable
 
       - name: Cache cargo registry (shared)
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           path: |
             ~/.cargo/registry
@@ -525,7 +525,7 @@ jobs:
 
       - name: Cache cargo registry (shared)
         if: needs.changes.outputs[matrix.package] == 'true'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           path: |
             ~/.cargo/registry

.github/workflows/mutation-testing.yml

@@ -31,7 +31,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y mold
 
       - name: Cache cargo registry
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           path: |
             ~/.cargo/registry

.github/workflows/release-engine.yml

@@ -51,7 +51,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y mold
 
       - name: Cache cargo registry
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5
+        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8  # v6.0.0
         with:
           path: |
             ~/.cargo/registry