chore: Update codecov action version (hiero-ledger#2344)

Signed-off-by: Manish Dait <daitmanish88@gmail.com>

Author: manishdait

.github/workflows/pr-check-primary-codecov.yml

@@ -6,10 +6,12 @@ on:
     paths:
       - "src/**"
       - "tests/unit/**"
+      - ".github/workflows/pr-check-primary-codecov.yml"
   pull_request:
     paths:
       - "src/**"
       - "tests/unit/**"
+      - ".github/workflows/pr-check-primary-codecov.yml"
 
 permissions:
   contents: read
@@ -53,7 +55,7 @@ jobs:
 
       - name: Upload coverage to Codecov
         if: github.repository_owner == 'hiero-ledger'
-        uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6.0.1
+        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7.0.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: coverage.xml