ci: bump actions/checkout to v3 to fix node12 deprecation (#26281)

Author: Hotell

.github/workflows/check-packages.yml

@@ -38,7 +38,7 @@ jobs:
   dependency-mismatches:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - uses: actions/setup-node@v3
         with:
@@ -62,7 +62,7 @@ jobs:
   change-files:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/issues.yml

@@ -12,7 +12,7 @@ jobs:
       issues: write
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/github-script@v6
         with:
           script: |