Bump actions/cache in the action-deps group across 1 directory

Bumps the action-deps group with 1 update in the / directory: [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: action-deps
...

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

Author: dependabot[bot]

.github/workflows/rust-bindings.yml

@@ -37,7 +37,7 @@ jobs:
         with:
           toolchain: stable
           targets: wasm32-wasip1
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -66,7 +66,7 @@ jobs:
         with:
           toolchain: "1.91.1"
           components: clippy, rustfmt
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry