revert: newest gh actions aren't compatible with linux images [skip ci]

.github/workflows/insider-linux.yml

@@ -44,7 +44,7 @@ jobs:
       SHOULD_DEPLOY: ${{ env.SHOULD_DEPLOY }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           ref: ${{ env.GITHUB_BRANCH }}
 

.github/workflows/stable-linux.yml

@@ -43,7 +43,7 @@ jobs:
       SHOULD_DEPLOY: ${{ env.SHOULD_DEPLOY }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           ref: ${{ env.GITHUB_BRANCH }}