chore(deps): bump actions/checkout from 6.0.1 to 7.0.0 (hiero-ledger#2408)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/bot-pr-missing-linked-issue.yml

@@ -38,7 +38,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           ref: ${{ github.event.pull_request.base.sha || github.sha }}