- attempt to fix CI (Continuous Integration) to use github enviroments.

.github/workflows/main.yml

@@ -4,14 +4,14 @@ on: [push, pull_request]
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Cache
         id: cache-1
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: cache
           key: ${{ runner.os }}-cache-1
@@ -51,12 +51,12 @@ jobs:
           mkdir -p wiiflow
           cp -r wii/wiiflow/Languages wiiflow/languages
           cp -r wii/wiiflow/themes_lite wiiflow/themes_lite
-          echo "::set-output name=sha::$(echo ${GITHUB_SHA} | head -c 7)"
+		  echo "sha=$(git rev-parse --short=7 HEAD)" >> $GITHUB_ENV
 
       - name: Upload binaries
         uses: actions/upload-artifact@v2
         with: 
-          name: wiiflow_lite_${{ steps.pack.outputs.sha }}
+          name: wiiflow_lite_${{ env.sha }}
           path: |
             apps
             wiiflow