enable benchmarks in cI

Author: madsodgaard

.github/workflows/pull_request.yml

@@ -112,6 +112,26 @@ jobs:
       - name: Gradle compile JMH benchmarks
         run: ./gradlew compileJmh --info
 
+  benchmark-swift:
+    name: Benchmark (Swift) (${{ matrix.os_version }} swift:${{ matrix.swift_version }} jdk:${{matrix.jdk_vendor}})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        swift_version: ['6.2.0']
+        os_version: ['jammy']
+        jdk_vendor: ['corretto']
+    container:
+      image: ${{ (contains(matrix.swift_version, 'nightly') && 'swiftlang/swift') || 'swift' }}:${{ matrix.swift_version }}-${{ matrix.os_version }}
+    env:
+      SWIFT_JAVA_VERBOSE: true
+    steps:
+      - uses: actions/checkout@v4
+      - name: Prepare CI Environment
+        uses: ./.github/actions/prepare_env
+      - name: Swift Benchmarks
+        run: swift package --package-path Benchmarks/ benchmark list
+
   test-swift:
     name: Test (Swift) (${{ matrix.os_version }} swift:${{ matrix.swift_version }} jdk:${{matrix.jdk_vendor}})
     runs-on: ubuntu-latest