ci: bump actions/cache from 5 to 6 in the github-actions group

Bumps the github-actions group with 1 update: [actions/cache](https://github.com/actions/cache).


Updates `actions/cache` from 5 to 6
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v5...v6)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/QA.yaml

@@ -49,7 +49,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7
       - name: Cache cargo-audit
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         id: cache-audit
         with:
           path: ~/.cargo/bin/cargo-audit
@@ -79,7 +79,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7
       - name: Cache cargo-deny
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         id: cache-deny
         with:
           path: ~/.cargo/bin/cargo-deny

.github/workflows/release.yaml

@@ -62,7 +62,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: Cache cargo
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -90,7 +90,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: Cache cargo registry
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -135,7 +135,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: Cache cargo registry
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -191,7 +191,7 @@ jobs:
           targets: ${{ matrix.target }}
 
       - name: Cache cargo
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry