more fixes for workflow

.github/workflows/addon-ci.yaml

@@ -14,27 +14,27 @@ jobs:
     name: Discover Add-ons
     runs-on: ubuntu-latest
     outputs:
-      folders: ${{ steps.folders.outputs.addon_dirs }}
+      addon_dirs: ${{ steps.folders.outputs.addon_dirs }}
     steps:
       - name: Checkout code from GitHub
         uses: actions/checkout@v2
       - name: Find add-on directories
         id: folders
         run: |
           ADDON_DIRS=$(find addons -mindepth 1 -maxdepth 1 -type d | jq -R -s -c 'split("\n") | map(select(length > 0))')
-          echo "addon_dirs=$ADDON_DIRS" >> $GITHUB_ENV
+          echo "::set-output name=addon_dirs::$ADDON_DIRS"
       - name: Debug - List directories
         run: |
           echo "Found add-on directories:"
-          echo "${{ env.addon_dirs }}"
+          echo "${{ steps.folders.outputs.addon_dirs }}"
 
   information:
     name: Gather add-on information
     needs: discover
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        folder: ${{ fromJson(env.addon_dirs) }}
+        folder: ${{ fromJson(needs.discover.outputs.addon_dirs) }}
     outputs:
       architectures: ${{ steps.information.outputs.architectures }}
       build: ${{ steps.information.outputs.build }}
@@ -59,15 +59,15 @@ jobs:
           if [[ ! -z "${{ inputs.slug }}" ]]; then
             slug="${{ inputs.slug }}"
           fi
-          echo "slug=$slug" >> $GITHUB_ENV
+          echo "slug=$slug" >> "$GITHUB_OUTPUT"
 
   lint:
     name: Lint Add-on
     needs: information
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        folder: ${{ fromJson(env.addon_dirs) }}
+        folder: ${{ fromJson(needs.discover.outputs.addon_dirs) }}
     steps:
       - name: Checkout code from GitHub
         uses: actions/checkout@v2
@@ -103,7 +103,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        folder: ${{ fromJson(env.addon_dirs) }}
+        folder: ${{ fromJson(needs.discover.outputs.addon_dirs) }}
         architecture: [amd64, armhf, armv7, aarch64, i386]
     steps:
       - name: Checkout code from GitHub
@@ -123,19 +123,19 @@ jobs:
       - name: Compose build flags
         id: flags
         run: |
-          echo "date=$(date +"%Y-%m-%dT%H:%M:%SZ")" >> $GITHUB_ENV
+          echo "date=$(date +"%Y-%m-%dT%H:%M:%SZ")" >> "$GITHUB_ENV"
           from=$(yq --no-colors eval ".build_from.${{ matrix.architecture }}" "${{ matrix.folder }}/config.json")
-          echo "from=${from}" >> $GITHUB_ENV
+          echo "from=${from}" >> "$GITHUB_ENV"
           if [[ "${{ matrix.architecture}}" = "amd64" ]]; then
-            echo "platform=linux/amd64" >> $GITHUB_ENV
+            echo "platform=linux/amd64" >> "$GITHUB_ENV"
           elif [[ "${{ matrix.architecture }}" = "i386" ]]; then
-            echo "platform=linux/386" >> $GITHUB_ENV
+            echo "platform=linux/386" >> "$GITHUB_ENV"
           elif [[ "${{ matrix.architecture }}" = "armhf" ]]; then
-            echo "platform=linux/arm/v6" >> $GITHUB_ENV
+            echo "platform=linux/arm/v6" >> "$GITHUB_ENV"
           elif [[ "${{ matrix.architecture }}" = "armv7" ]]; then
-            echo "platform=linux/arm/v7" >> $GITHUB_ENV
+            echo "platform=linux/arm/v7" >> "$GITHUB_ENV"
           elif [[ "${{ matrix.architecture }}" = "aarch64" ]]; then
-            echo "platform=linux/arm64/v8" >> $GITHUB_ENV
+            echo "platform=linux/arm64/v8" >> "$GITHUB_ENV"
           else
             echo "::error ::Could not determine platform for architecture ${{ matrix.architecture }}"
             exit 1