remove: phpbench

Regardless what I do I can't stabilize the benchmarks. The dream was to
use phpbench to run benchmarks on each PR and commpare it with the
baseline to early detect regressions. I even went through the trouble of
creating dedicated github runner, with dedicated cpu, but even that
didn't allowed me to make it work.
Because of that I decided to abandon the idea of automated benchmarks,
in the fugure we might want to investigate using a profiler similar to
blackfire.

Author: norberttech

.github/dependabot.yml

@@ -37,11 +37,6 @@ updates:
     schedule:
       interval: "daily"
 
-  - package-ecosystem: "composer"
-    directory: "/tools/phpbench"
-    schedule:
-      interval: "daily"
-
   - package-ecosystem: "composer"
     directory: "/tools/phpstan"
     schedule:

.github/workflows/baseline.yml

@@ -90,119 +90,6 @@ jobs:
           path: build/flow.phar
           overwrite: true
 
-  benchmark-baseline:
-    runs-on: benchmark
-
-    services:
-      postgres:
-        image: postgres:18-alpine
-        env:
-          POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: postgres
-        ports:
-          - 5432/tcp
-        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
-
-    strategy:
-      fail-fast: false
-      matrix:
-        dependencies:
-          - "locked"
-        php-version:
-          - "8.3"
-
-    steps:
-      - name: "Set Git Ref"
-        run: |
-          if [[ "${{ github.event_name }}" == "push" || "${{ github.event_name }}" == "schedule" ]]; then
-            echo "GIT_REF=${{ github.ref }}" >> $GITHUB_ENV
-          elif [[ "${{ github.event.inputs.tag_name }}" != "" ]]; then
-            echo "GIT_REF=refs/tags/${{ github.event.inputs.tag_name }}" >> $GITHUB_ENV
-          else
-            echo "GIT_REF=${{ github.event.inputs.branch_name }}" >> $GITHUB_ENV
-          fi
-
-      - name: "Set Benchmark Tag"
-        run: |
-          if [[ "${{ github.event_name }}" == "push" || "${{ github.event_name }}" == "schedule" ]]; then
-            echo "PHPBENCH_TAG=1.x" >> $GITHUB_ENV
-          elif [[ "${{ github.event.inputs.tag_name }}" != "" ]]; then
-            echo "PHPBENCH_TAG=${{ github.event.inputs.tag_name }}" >> $GITHUB_ENV
-          else
-            echo "PHPBENCH_TAG=${{ github.event.inputs.branch_name }}" >> $GITHUB_ENV
-          fi
-
-      - name: "Checkout to specific ref"
-        uses: "actions/checkout@v5"
-        with:
-          ref: ${{ env.GIT_REF }}
-
-      - name: "Get Composer Cache Directory"
-        id: composer-cache
-        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-
-      - name: "Cache Composer dependencies"
-        uses: "actions/cache@v4"
-        with:
-          path: "${{ steps.composer-cache.outputs.dir }}"
-          key: "php-${{ matrix.php-version }}-locked-composer-benchmark-${{ hashFiles('**/composer.lock') }}"
-          restore-keys: |
-            php-${{ matrix.php-version }}-locked-composer-benchmark-
-
-      - name: "Install dependencies"
-        run: "composer install --no-interaction --no-progress"
-
-      - name: "Generate phpbench.json with dynamic port"
-        run: |
-          sed 's/127.0.0.1:5432/127.0.0.1:${{ job.services.postgres.ports[5432] }}/' phpbench.json.dist > phpbench.json
-
-      - name: "Start OpenTelemetry Collector"
-        run: |
-          docker rm -f otel-collector 2>/dev/null || true
-          docker run -d --name otel-collector \
-            -p 4317:4317 -p 4318:4318 -p 8888:8888 -p 13133:13133 \
-            -v ${{ github.workspace }}/docker/otel-collector-test-config.yaml:/etc/otelcol-contrib/config.yaml:ro \
-            otel/opentelemetry-collector-contrib:0.115.1
-          # Wait for container to be ready
-          for i in {1..30}; do
-            if curl -sf http://localhost:13133/ > /dev/null 2>&1; then
-              echo "OpenTelemetry Collector is ready"
-              break
-            fi
-            echo "Waiting for OpenTelemetry Collector... ($i/30)"
-            sleep 2
-          done
-
-      - name: "Benchmark"
-        env:
-          OTEL_RECEIVER_HTTP_ENDPOINT: "http://localhost:4318"
-          OTEL_RECEIVER_GRPC_ENDPOINT: "localhost:4317"
-          OTEL_COLLECTOR_METRICS_ENDPOINT: "http://localhost:8888/metrics"
-        run: |
-          # Phase 1: Run with progress visible, store results
-          tools/phpbench/vendor/bin/phpbench run \
-            --progress=plain \
-            --store \
-            --tag=${{ env.PHPBENCH_TAG }}
-
-          # Phase 2: Generate clean report from stored results
-          echo '# Flow PHP - Benchmark - ${{ env.PHPBENCH_TAG }}' >> $GITHUB_STEP_SUMMARY
-          echo ' ' >> $GITHUB_STEP_SUMMARY
-          echo '---' >> $GITHUB_STEP_SUMMARY
-          echo '```' >> $GITHUB_STEP_SUMMARY
-          tools/phpbench/vendor/bin/phpbench report \
-            --ref=${{ env.PHPBENCH_TAG }} \
-            --report=flow-report >> $GITHUB_STEP_SUMMARY
-          echo '```' >> $GITHUB_STEP_SUMMARY
-
-      - name: "Store Benchmark baseline"
-        uses: actions/upload-artifact@v6
-        with:
-          name: phpbench-baseline
-          path: ./var/phpbench/
-          overwrite: true
-
   publish-website:
     runs-on: ubuntu-latest
     strategy: