chore: bump actions/checkout from v2 to v3 (#28716)

.github/workflows/client-targets.yml

@@ -46,7 +46,7 @@ jobs:
             os: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable

.github/workflows/explorer.yml

@@ -13,7 +13,7 @@ jobs:
       run:
         working-directory: explorer
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - uses: actions/setup-node@v2

.github/workflows/explorer_production.yml

@@ -11,7 +11,7 @@ jobs:
         run:
           working-directory: explorer
       steps:
-       - uses: actions/checkout@v2
+       - uses: actions/checkout@v3
          with:
           ref: ${{ github.event.pull_request.head.sha }}
        - uses: actions/setup-node@v2
@@ -33,7 +33,7 @@ jobs:
             working-directory: explorer
     
       steps:
-       - uses: actions/checkout@v2
+       - uses: actions/checkout@v3
          with:
            ref: ${{ github.event.pull_request.head.sha }}
        - uses: amondnet/vercel-action@v20

.github/workflows/web3.yml

@@ -32,7 +32,7 @@ jobs:
         working-directory: web3.js
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           # maybe needed for base sha below
           fetch-depth: 0
@@ -63,7 +63,7 @@ jobs:
 
     name: Node ${{ matrix.node }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node }}