Updated the release.yml workflow

.github/workflows/release.yml

@@ -22,9 +22,15 @@ jobs:
       - name: Build executables
         run: |
           for file in $(cat files.txt); do
-            g++ -o $file-${{ github.ref_name.substring(0, 4) }} $file
+            g++ -o $file-${{ github.ref_name[0:4] }} $file
           done
 
+      - name: Create folder
+        run: mkdir -p executables
+
+      - name: Move executables to folder
+        run: mv *.${{ github.ref_name[0:4] }} executables/
+
   release:
     needs: build
     runs-on: ubuntu-latest
@@ -35,17 +41,16 @@ jobs:
       - name: Create release
         uses: actions/create-release@v1
         with:
-          tag_name: ${{ github.ref_name.substring(0, 4) }}
-          release_name: Release ${{ github.ref_name.substring(0, 4) }}
+          tag_name: ${{ github.ref_name[0:4] }}
+          release_name: Release ${{ github.ref_name[0:4] }}
           body: |
-            This is the release ${{ github.ref_name.substring(0, 4) }}.
+            This is the release ${{ github.ref_name[0:4] }}.
 
           draft: false
           prerelease: false
 
-      - name: Upload executables
+      - name: Upload folder
         uses: actions/upload-artifact@v2
         with:
           name: executables
-          path: |
-            $(cat files.txt)-${{ github.ref_name.substring(0, 4) }}
+          path: executables/