chore(config): migrate renovate config (#307)

chore(config): migrate config renovate.json

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

renovate.json

@@ -5,19 +5,19 @@
     ":rebaseStalePrs"
   ],
   "kustomize": {
-    "fileMatch": [
-      "(^|/)kustomization\\.ya?ml(\\.j2)?$"
+    "managerFilePatterns": [
+      "/(^|/)kustomization\\.ya?ml(\\.j2)?$/"
     ]
   },
   "customManagers": [
     {
       "customType": "regex",
-      "fileMatch": [
-        "\\.tf$",
-        "\\.tftpl$",
-        "\\.yaml$",
-        "\\.sh$",
-        "\\.tfvars"
+      "managerFilePatterns": [
+        "/\\.tf$/",
+        "/\\.tftpl$/",
+        "/\\.yaml$/",
+        "/\\.sh$/",
+        "/\\.tfvars/"
       ],
       "matchStrings": [
         "(?<currentValue>[\\w+\\.\\-]*)['\",;]*\\s*#\\s?renovate: (?<datasource>\\S+)=(?<depName>\\S+)\\s?(registry=(?<registryUrl>\\S+))?\\s?(versioning=(?<versioning>\\S+))?"