CI: Disable the Benchmarks workflow on release events (#3224)

Author: seisman

.github/workflows/benchmarks.yml

@@ -1,7 +1,7 @@
 # Run performance benchmarks
 #
-# Continuous benchmarking using pytest-codspeed. Measures the execution speed
-# of tests marked with @pytest.mark.benchmark decorator.
+# Continuous benchmarking using pytest-codspeed. Measures the execution speed of tests
+# marked with @pytest.mark.benchmark decorator.
 
 name: Benchmarks
 
@@ -15,12 +15,9 @@ on:
   # Run in PRs but only if the PR has the 'run/benchmark' label
   pull_request:
     types: [ opened, reopened, labeled, synchronize ]
-  # `workflow_dispatch` allows CodSpeed to trigger backtest
-  # performance analysis in order to generate initial data.
+  # 'workflow_dispatch' allows CodSpeed to trigger backtest performance analysis
+  # in order to generate initial data.
   workflow_dispatch:
-  release:
-    types:
-      - published
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}