fix: use upstream third-party container images [skip ci]

ci/docker/docs/Dockerfile

@@ -1,5 +1,5 @@
 # Stage 1: Build
-FROM git.ermnvldmr.com/deytenit/hugo:v0.154.5 AS builder
+FROM ghcr.io/gohugoio/hugo:v0.154.5 AS builder
 
 WORKDIR /src
 # Copy git directory for git info metadata

ci/k8s/apps/umami/deployment.yaml

@@ -22,7 +22,7 @@ spec:
     spec:
       containers:
         - name: umami
-          image: git.ermnvldmr.com/deytenit/umami:postgresql-v2.14.0
+          image: ghcr.io/umami-software/umami:postgresql-v2.14.0
           imagePullPolicy: IfNotPresent
           ports:
             - name: http

ci/k8s/apps/umami/kustomization.yaml

@@ -7,5 +7,5 @@ resources:
   - deployment.yaml
   - service.yaml
 images:
-  - name: git.ermnvldmr.com/deytenit/umami
+  - name: ghcr.io/umami-software/umami
     newTag: postgresql-v2.14.0