Revert "Merge pull request #57 from swiftwasm/dependabot/github_actions/actions/checkout-4"

This reverts commit b62d753, reversing
changes made to 844dbf9.

Author: kateinoigakukun

.github/workflows/check-dist.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
 
       - name: Set Node.js 16.x
         uses: actions/[email protected]

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
   units:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - run: npm ci
     - run: npm test
 
@@ -31,20 +31,20 @@ jobs:
     runs-on: ${{ matrix.os }}
     container: ${{ matrix.container }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - uses: ./
       with:
         swift-version: ${{ matrix.swift-version }}
     - run: swift --version
   test-default:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - uses: ./
     - run: swift --version
   test-nightly:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - uses: ./nightly
     - run: swift --version