(maint) Updates actions/checkout GitHub Action

This commit also updates all instances of the actions/checkout@v2
to actions/checkout@v3 in perparation for the former's deprecation
as part of the NodeJS 12 deprecation.

https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/

Author: mhashizume

.github/workflows/auto_release.yml

@@ -28,7 +28,7 @@ jobs:
 
     - name: "Checkout Source"
       if: ${{ github.repository_owner == 'puppetlabs' }}
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0
         persist-credentials: false

.github/workflows/daily_unit_tests_with_nightly_puppet_gem.yaml

@@ -34,7 +34,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Install ruby version ${{ matrix.ruby }}
         uses: ruby/setup-ruby@v1

.github/workflows/release.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: ${{ github.ref }}
           clean: true
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: ${{ github.ref }}
           clean: true

.github/workflows/static_code_analysis.yaml

@@ -17,7 +17,7 @@ jobs:
     runs-on: 'ubuntu-20.04'
     steps:
       - name: Checkout current PR code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/task_acceptance_tests.yaml

@@ -23,7 +23,7 @@ jobs:
     runs-on: 'ubuntu-20.04'
     steps:
       - name: Checkout current PR code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Install docker
         uses: docker/setup-buildx-action@v1

.github/workflows/unit_tests_with_nightly_puppet_gem.yaml

@@ -36,7 +36,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current PR code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Install ruby version ${{ matrix.ruby }}
         uses: ruby/setup-ruby@v1

.github/workflows/unit_tests_with_released_puppet_gem.yaml

@@ -32,7 +32,7 @@ jobs:
       PUPPET_GEM_VERSION: ~> ${{ matrix.puppet_version }}.0
     steps:
       - name: Checkout current PR code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Install ruby version ${{ matrix.ruby }}
         uses: ruby/setup-ruby@v1