added audit links and bug bounty existing for ankr liquid staking [Fixes #8801]

Author: PolozovT

src/data/staking-products.json

@@ -641,7 +641,16 @@
       "hue": 221,
       "launchDate": "2020-11-20",
       "url": "https://stakefi.ankr.com/liquid-staking",
-      "audits": [],
+      "audits": [
+        {
+          "name": "Beosin",
+          "url": "https://assets.ankr.com/files/stkr_smart_contract_auditing_report.pdf"
+        },
+        {
+          "name": "Beosin",
+          "url": "https://assets.ankr.com/staking/smart_contract_security_audit_aeth_beosin.pdf"
+        }
+      ],
       "minEth": 0.5,
       "feePercentage": 15,
       "tokens": [
@@ -657,7 +666,7 @@
         }
       ],
       "isFoss": true,
-      "hasBugBounty": false,
+      "hasBugBounty": true,
       "isTrustless": false,
       "hasPermissionlessNodes": false,
       "pctMajorityClient": 67.94,