ci: run every third day of the month instead of nightly

Author: Chaitanya Kumar

.github/workflows/benchmark.yml

@@ -5,7 +5,7 @@ on:
     branches:
       - main
   schedule:
-    - cron: '0 0 * * *'
+    - cron: '0 0 */3 * *'
 
 permissions:
   contents: write
@@ -32,7 +32,7 @@ jobs:
         run: python --version
       - name: Install dependencies
         run: |
-          python -m pip install "pandas~=2.2" "influxdb_client~=1.48"
+          python -m pip install -r requirements.txt
       - name: Verify package installation
         run: python -c "import pandas as pd; print(pd.__version__); import influxdb_client; print(influxdb_client.__version__)"
       - run: apt-get -q update && apt-get install -y libjemalloc-dev