Add manual workflows to concurrency group

Author: tellet-q

.github/workflows/manual-benchmark.yaml

@@ -17,6 +17,11 @@ on:
             description: "Enable all feature flags (false by default)"
             default: false
 
+# Restrict to only running workflows of this group one at a time.
+# Any new runs will be queued until the previous run is complete.
+# Any existing pending runs will be cancelled and replaced with current run.
+concurrency:
+  group: continuous-benchmark
 
 jobs:
   runManualBenchmark:

.github/workflows/manual-compare-versions-benchmark.yaml

@@ -28,6 +28,12 @@ on:
             description: "Enable all feature flags (false by default), version 2"
             default: false
 
+# Restrict to only running this workflow one at a time.
+# Any new runs will be queued until the previous run is complete.
+# Any existing pending runs will be cancelled and replaced with current run.
+concurrency:
+  group: continuous-benchmark
+
 jobs:
   prepareImage1:
     name: Prepare image ${{ inputs.qdrant_version_1 }}