Used full commit SHA for lychee-action

Used full commit SHA for lychee-action to fix Sonar security hotspot

Author: ShimonaR-MC

.github/workflows/broken-links.yml

@@ -13,6 +13,6 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Link Checker
-        uses: lycheeverse/lychee-action@v2.0.2
+        uses: lycheeverse/lychee-action@7cd0af4c74a61395d455af97419279d86aafaede
         with:
           fail: true