Set architecture options from runner's architecture (#264)

* feat: Add ARCH_NAME variable and set default ARCH value

* chore: Show runner's os and architecture

* chore: Update actions

.github/workflows/workflow.yml

@@ -12,7 +12,7 @@ jobs:
   lint_shellcheck:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ludeeus/action-shellcheck@master
   test_channel:
     runs-on: ${{ matrix.operating-system }}
@@ -24,13 +24,16 @@ jobs:
           - operating-system: ubuntu-latest
             channel: main
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - id: flutter-action
       uses: ./
       with:
         channel: ${{ matrix.channel }}
     - name: Echo outputs
       run: |
+        echo RUNNER-OS=${{ runner.os }}
+        echo RUNNER-ARCH=${{ runner.arch }}
+
         echo CACHE-PATH=${{ steps.flutter-action.outputs.CACHE-PATH }}
         echo CACHE-KEY=${{ steps.flutter-action.outputs.CACHE-KEY }}
         echo CHANNEL=${{ steps.flutter-action.outputs.CHANNEL }}
@@ -47,7 +50,7 @@ jobs:
       matrix:
         operating-system: [ubuntu-latest, windows-latest, macos-latest]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ./
       with:
         channel: stable
@@ -60,7 +63,7 @@ jobs:
   test_print_output:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: ./setup.sh -t -p                        | grep 'stable'
       shell: bash
     - run: ./setup.sh -t -p                        | grep '3.7.7'