Don't expect Swift baseline info on Windows

Author: henrymercer

.github/workflows/__export-file-baseline-information.yml

@@ -27,10 +27,15 @@ steps:
       path: "${{ runner.temp }}/results/javascript.sarif"
       retention-days: 7
   - name: Check results
+    env:
+      RUNNER_OS: ${{ matrix.os }}
     shell: bash
     run: |
       cd "$RUNNER_TEMP/results"
-      expected_baseline_languages="cpp cs go java js py rb swift"
+      expected_baseline_languages="cpp cs go java js py rb"
+      if [[ "${RUNNER_OS}" != "windows-latest" ]]; then
+        expected_baseline_languages+=" swift"
+      fi
 
       for lang in ${expected_baseline_languages}; do
         rule_name="${lang}/baseline/expected-extracted-files"