Merge pull request #275 from guardian/dependabot/github_actions/actions/checkout-6

chore(deps): bump actions/checkout from 5 to 6

Author: akash1810

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
       pull-requests: write
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: guardian/setup-scala@v1
 

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

@@ -10,7 +10,7 @@ jobs:
     steps:
       - name: Checkout branch
         id: checkout
-        uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493 # v4.2.1
+        uses: actions/checkout@v6
       - uses: guardian/setup-scala@v1
       - name: Submit dependencies
         id: submit