.github: disable version updater

Signed-off-by: paulfantom <pawel@krupa.net.pl>

.github/workflows/versions.yaml

@@ -1,19 +0,0 @@
-name: Sync component versions
-
-on:
-  schedule:
-    - cron: '18 8 * * *'
-
-jobs:
-  versions:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        persist-credentials: false
-    - uses: actions/setup-go@v2
-    - uses: romoh/dependencies-autoupdate@v1.1
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        update-command: "'scripts/generate-versions.sh $token > jsonnet/kube-prometheus/versions.json'"
-        on-changes-command: "'make --always-make generate'"