Build(deps): Bump actions/checkout from 5.0.1 to 6.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.1 to 6.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](actions/checkout@v5.0.1...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/cdk-test.yml

@@ -19,7 +19,7 @@ jobs:
   cdk-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - run: corepack enable
 

.github/workflows/event-consumer.yml

@@ -24,7 +24,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/fake-breaking-news.yml

@@ -26,7 +26,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/football.yml

@@ -25,7 +25,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/notification-worker-lambdas.yml

@@ -27,7 +27,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/notification.yml

@@ -27,7 +27,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/registration.yml

@@ -28,7 +28,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/report-extractor.yml

@@ -25,7 +25,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/report.yml

@@ -27,7 +27,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.0
 
       - name: Setup JDK and sbt
         uses: guardian/setup-scala@v1

.github/workflows/sbt-dependency-graph.yaml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - name: Checkout branch
         id: checkout
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v4.2.1
+        uses: actions/checkout@v6.0.0
       - name: Install Java
         id: java
         uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v4.2.0