fix: add sourceUrl to branches cache

lib/util/cache/repository/index.ts

@@ -22,6 +22,7 @@ export interface BranchUpgradeCache {
   newDigest?: string;
   newValue?: string;
   toVersion?: string;
+  sourceUrl?: string;
 }
 
 export interface BranchCache {

lib/workers/repository/cache.ts

@@ -26,6 +26,7 @@ function generateBranchUpgradeCache(
     toVersion,
     currentDigest,
     newDigest,
+    sourceUrl,
   } = upgrade;
   return {
     datasource,
@@ -36,6 +37,7 @@ function generateBranchUpgradeCache(
     toVersion,
     currentDigest,
     newDigest,
+    sourceUrl,
   };
 }