chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/DEPLOY.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     concurrency: deploy-snapshots
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
 
       - name: Import Secrets
         id: secrets # important to refer to it in later steps

.github/workflows/RELEASE.yml

@@ -15,7 +15,7 @@ jobs:
     name: Release and deploy artifacts
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
 
       - name: Import Secrets
         id: secrets

.github/workflows/THIRD_PARTY_NOTICE.yml

@@ -12,7 +12,7 @@ jobs:
     name: Create third-party notice
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
 
       - name: Prepare Java and Maven settings
         uses: actions/setup-java@v3

.github/workflows/test.yaml

@@ -11,7 +11,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'