Bump checkout action from v2 to v3

Author: oalders

.github/workflows/publish-to-docker.yml

@@ -15,7 +15,7 @@ jobs:
     name: "Build latest"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Publish to Registry
         uses: elgohr/Publish-Docker-Github-Action@3.04
         with:
@@ -50,7 +50,7 @@ jobs:
           - "5.8"
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Publish to Registry
         uses: elgohr/Publish-Docker-Github-Action@3.04
         with:

.github/workflows/test-cpanfile.yml

@@ -31,7 +31,7 @@ jobs:
           - '5.34'
     name: Perl ${{ matrix.perl-version }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install deps using cpm
         uses: perl-actions/install-with-cpm@v1
         with: