Missed PHP setup step in benchmark workflow (#154)

Integration of step to setup PHP version 8.3 in the benchmark workflow
process has been added. This setup step ensures correct PHP version is
used before running benchmarks. This modification has been implemented
in both active and commented sections of the GitHub workflow.

.github/workflows/benchmark.yml

@@ -39,6 +39,11 @@ jobs:
           fetch-depth: 0
           ref: ${{ github.event.inputs.branch || github.ref }}
 
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.3
+
       # We need it to build benchmark tool. See ./tests/Benchmarks
       - name: Build project
         run: make build --no-print-directory
@@ -82,6 +87,11 @@ jobs:
 #        uses: shivammathur/setup-php@v2
 #        with:
 #          php-version: 8.3
+#
+#      - name: Setup PHP
+#        uses: shivammathur/setup-php@v2
+#        with:
+#          php-version: 8.3
 #          coverage: none
 #          ini-values: opcache.enable_cli=1, opcache.jit=1255
 #