bug: Fix label-sync configuration (#9382)

/kind bug
/area ci

Fix label-sync configuration options by getting YAML file directly from git instead of from local configmap on a cluster

prow/jobs/kyma-project/test-infra/prow-periodics.yaml

@@ -1,9 +1,4 @@
-# Code generated by rendertemplates. DO NOT EDIT.
-
-
 postsubmits: # runs on main
-  kyma-project/eventing-tools:
-
   kyma-project/test-infra:
     - name: post-test-infra-markdown-index-autobump
       annotations:
@@ -152,6 +147,10 @@ periodics: # runs on schedule
       skip_report: false
       decorate: true
       cluster: trusted-workload
+      extra_refs:
+        - org: kyma-project
+          repo: test-infra
+          base_ref: main
       spec:
         containers:
           - image: "europe-docker.pkg.dev/kyma-project/prod/k8s-prow/label_sync:v20231120-01b262b8"
@@ -163,21 +162,12 @@ periodics: # runs on schedule
             command:
               - "label_sync"
             args:
-              - "--config=/etc/config/labels.yaml"
+              - "--config=prow/labels.yaml"
               - "--confirm=true"
               - "--orgs=kyma-project,kyma-incubator"
               - "--token=/etc/github/token"
               - "--endpoint=http://ghproxy"
               - "--endpoint=https://api.github.com"
-              - "--debug"
-            volumeMounts:
-              - name: config
-                mountPath: /etc/config
-                readOnly: true
-        volumes:
-          - name: config
-            configMap:
-              name: label-config
     - name: ci-prow-autobump
       annotations:
         description: "Autobump prow components image versions"

prow/plugins.yaml

@@ -85,15 +85,8 @@ config_updater:
       gzip: true
     prow/config.yaml:
       name: config
-    prow/branchprotector-config.yaml:
-      name: branchprotector-config
     prow/plugins.yaml:
       name: plugins
-    prow/labels.yaml:
-      name: label-config
-      clusters:
-        trusted-workload:
-          - default
     configs/kaniko-build-config.yaml:
       name: kaniko-build-config
       clusters:
@@ -155,7 +148,7 @@ require_matching_label:
     issues: true
     missing_comment: |
       There is no `kind/` label present. Please add one by using the following command:
-      - `/kind <kind>
+      - `/kind <kind>`
       
       Available kinds:
       `deprecation`, `bug`, `chore`, `feature`, `flake`, `cleanup`, `missing-test`, `failing-test`