chore: bump zama-ai/slab-github-runner

Bumps [zama-ai/slab-github-runner](https://github.com/zama-ai/slab-github-runner) from 265c721b68e5dd339d5f34f1c1753013881f96e4 to 9e939a10db25c698cddf0da0f4f015bd47bb6838.
- [Commits](zama-ai/slab-github-runner@265c721...9e939a1)

---
updated-dependencies:
- dependency-name: zama-ai/slab-github-runner
  dependency-type: direct:production
...

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

.github/workflows/cifar_benchmark.yaml

@@ -57,7 +57,7 @@ jobs:
     steps:
       - name: Start instance
         id: start-instance
-        uses: zama-ai/slab-github-runner@265c721b68e5dd339d5f34f1c1753013881f96e4
+        uses: zama-ai/slab-github-runner@9e939a10db25c698cddf0da0f4f015bd47bb6838
         with:
           mode: start
           github-token: ${{ secrets.SLAB_ACTION_TOKEN }}
@@ -211,7 +211,7 @@ jobs:
     steps:
       - name: Stop instance
         id: stop-instance
-        uses: zama-ai/slab-github-runner@265c721b68e5dd339d5f34f1c1753013881f96e4
+        uses: zama-ai/slab-github-runner@9e939a10db25c698cddf0da0f4f015bd47bb6838
         with:
           mode: stop
           github-token: ${{ secrets.SLAB_ACTION_TOKEN }}