chore(config): migrate renovate config (#789)

renovate[bot] · web-flow · commit 26c288f5fc63 · 2023-09-26T16:00:53.000+02:00
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/.github/renovate.json b/.github/renovate.json
@@ -31,7 +31,7 @@
       "semanticCommitType": "ci"
     }
   ],
-  "regexManagers": [
+  "customManagers": [
     {
       "customType": "regex",
       "fileMatch": ["^README\\.md$"],
