Update release.yml

.github/workflows/release.yml

@@ -24,11 +24,6 @@ jobs:
       - uses: dart-lang/[email protected]
         with:
           sdk: ${{ matrix.sdk }}
-
-      # you can reference the tagged version via 
-      - name: Get the version
-        id: get_version
-        run: echo ::set-output name=VERSION::${GITHUB_REF/refs\/tags\//}          
 
       - name: Install dependencies
         run: dart pub get
@@ -44,7 +39,7 @@ jobs:
         run: dart analyze
 
       - name: Create release dir
-        run: mkdir bin/${{ matrix.os }}
+        run: mkdir bin/${{ runner.os }}
 
       # Your project will need to have tests in test/ and a dependency on
       # package:test for this step to succeed. Note that Flutter projects will