ci(perf.yml): bump google benchmark version to newer version

Signed-off-by: Leonardo Di Giovanna <[email protected]>

Author: ekoops

.github/workflows/perf.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           repository: 'google/benchmark'
-          ref: 'v1.9.0'
+          ref: '6a8dee95ae1151142fe4be94482cdfd11b7111bd' # Temporary solution, not released yet.
           path: google-benchmark/
 
       - name: Run perf