fix: match source url prefixes compares case insensitive (#12896)

lib/util/package-rules.spec.ts

@@ -733,4 +733,25 @@ describe('util/package-rules', () => {
     const res = applyPackageRules(config);
     expect(res.groupSlug).toBe('b');
   });
+  it('matches matchSourceUrlPrefixes(case-insensitive)', () => {
+    const config: TestConfig = {
+      packageRules: [
+        {
+          matchSourceUrlPrefixes: [
+            'https://github.com/foo/bar',
+            'https://github.com/Renovatebot/',
+          ],
+          x: 1,
+        },
+      ],
+    };
+    const dep = {
+      depType: 'dependencies',
+      depName: 'a',
+      updateType: 'patch' as UpdateType,
+      sourceUrl: 'https://github.com/renovatebot/Presets',
+    };
+    const res = applyPackageRules({ ...config, ...dep });
+    expect(res.x).toBe(1);
+  });
 });

lib/util/package-rules.ts

@@ -194,8 +194,9 @@ function matchesRule(
     positiveMatch = true;
   }
   if (matchSourceUrlPrefixes.length) {
+    const upperCaseSourceUrl = sourceUrl?.toUpperCase();
     const isMatch = matchSourceUrlPrefixes.some((prefix) =>
-      sourceUrl?.startsWith(prefix)
+      upperCaseSourceUrl?.startsWith(prefix.toUpperCase())
     );
     if (!isMatch) {
       return false;