feat: use ephemeral postgres for benchmarks (cause regression error)

.github/workflows/benchmark.yml

@@ -16,22 +16,12 @@ jobs:
       - uses: 'actions/checkout@v4'
         with:
           fetch-depth: 0
-      - run: go build -o /tmp/ledger ./
-      - run: echo "running actions as ${USER}"
-      - run: >
-          /tmp/ledger serve 
-          --postgres-uri=postgres://formance:[email protected]/ledger 
-          --postgres-conn-max-idle-time=120s 
-          --postgres-max-open-conns=500 
-          --postgres-max-idle-conns=100 
-          --experimental-features 
-          --otel-metrics-keep-in-memory &
       - uses: extractions/setup-just@v2
       - run: >
           just
           --justfile ./test/performance/justfile
           --working-directory ./test/performance 
-          run . 5 10s 1 http://localhost:3068
+          run . 5 10s 1
       - run: >
           just 
           --justfile ./test/performance/justfile 

test/performance/justfile

@@ -3,20 +3,19 @@ set positional-arguments
 
 tmpdir := `mktemp -d`
 
-run bench='.' p='1' benchtime='1s' count='1' ledger-url='' output='./report/benchmark-output.txt':
+run bench='.' p='1' benchtime='1s' count='1' output='./report/benchmark-output.txt':
     rm -f {{output}}
     go test -run ^$ -tags it,local \
         -report.file ./report/report.json \
         -timeout 60m \
         -bench={{bench}} \
         -count={{count}} \
-        --ledger.url={{ledger-url}} \
         -p {{p}} \
         -test.benchtime {{benchtime}} . | tee -a {{output}}
 
 compare bench='.' p='1' benchtime='1s' count='1' output='./report/benchmark-output.txt':
     trap 'rm -rf {{tmpdir}}' EXIT
-    just run {{bench}} {{p}} {{benchtime}} {{count}} '' './report/benchmark-output-local.txt'
+    just run {{bench}} {{p}} {{benchtime}} {{count}} './report/benchmark-output-local.txt'
     git clone --depth 1 -b main https://github.com/formancehq/ledger {{tmpdir}}
     go test -run ^$ -tags it,local -report.file \
         ./report/report.json \