build(deps): bump namespacelabs/nscloud-cache-action

Bumps [namespacelabs/nscloud-cache-action](https://github.com/namespacelabs/nscloud-cache-action) from 1.2.18 to 1.2.19.
- [Release notes](https://github.com/namespacelabs/nscloud-cache-action/releases)
- [Commits](namespacelabs/nscloud-cache-action@v1.2.18...v1.2.19)

---
updated-dependencies:
- dependency-name: namespacelabs/nscloud-cache-action
  dependency-version: 1.2.19
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -31,7 +31,7 @@ jobs:
       uses: actions/checkout@v5
 
     - name: Setup Cache
-      uses: namespacelabs/[email protected].18
+      uses: namespacelabs/[email protected].19
       with:
         path: |
           /nix
@@ -63,7 +63,7 @@ jobs:
       uses: actions/checkout@v5
 
     - name: Setup Cache
-      uses: namespacelabs/[email protected].18
+      uses: namespacelabs/[email protected].19
       with:
         path: |
           /nix