chore: add script for generating flamegraph

generate_flamegraph.bash

@@ -0,0 +1,16 @@
+trap 'echo 4 | sudo tee /proc/sys/kernel/perf_event_paranoid ' EXIT SIGINT SIGTERM
+
+if ! command -v jq; then
+    cargo install jq
+fi
+if ! command -v flamegraph; then
+    cargo install flamegraph
+fi
+if ! command -v perf; then
+    sudo apt-get install linux-tools-common linux-tools-generic linux-tools-`uname -r`
+fi
+echo 2 | sudo tee /proc/sys/kernel/perf_event_paranoid
+
+gcloud storage cat gs://committer-testing-artifacts/23ffcf5/committer_flow_inputs.json | jq -r .committer_input | CARGO_PROFILE_RELEASE_DEBUG=true cargo flamegraph -- commit
+
+echo 4 | sudo tee /proc/sys/kernel/perf_event_paranoid