Fix fuzzer workflow

.github/workflows/cifuzz.yml

@@ -10,18 +10,17 @@ jobs:
     steps:
     - uses: actions/checkout@v3
       with: { fetch-depth: 2 }
-    - id: check
-      run: /bin/bash test/check.sh '^src/'
+    - run: if ./test/match_changed_files.sh '^src/' ; then echo GO=1 >> $GITHUB_ENV ; fi
     - name: Build Fuzzers
       id: build
-      if: steps.check.outputs.MATCH == 1
+      if: ${{ env.GO == 1 }}
       uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
       with:
         oss-fuzz-project-name: 'mongoose'
         dry-run: false
         language: c++
     - name: Run Fuzzers
-      if: steps.check.outputs.MATCH == 1
+      if: ${{ env.GO == 1 }}
       uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
       with:
         oss-fuzz-project-name: 'mongoose'
@@ -30,7 +29,7 @@ jobs:
         language: c++
     - name: Upload Crash
       uses: actions/upload-artifact@v1
-      if: steps.check.outputs.MATCH == 1 && failure() && steps.build.outcome == 'success'
+      if: env.GO == 1 && failure() && steps.build.outcome == 'success'
       with:
         name: artifacts
         path: ./out/artifacts