Update get credentials script (#428)

## 📝 Description

The place of storing credentials was changed in this PR
#338


## ✅ Checklist
- [x] I have tested this change
- [x] This change requires documentation update

Author: radwo

LOCAL-DEVELOPMENT.md

@@ -61,9 +61,9 @@ For development and testing, you can run Semaphore locally using Minikube:
 
     ```bash
     # Get credentials
-    kubectl get secret root-user -n default -o jsonpath='{.data.email}' | base64 -d
-    kubectl get secret root-user -n default -o jsonpath='{.data.password}' | base64 -d
-    kubectl get secret root-user -n default -o jsonpath='{.data.token}' | base64 -d
+     kubectl get secret semaphore-authentication -n default -o jsonpath='{.data.ROOT_USER_EMAIL}' | base64 -d
+    kubectl get secret semaphore-authentication -n default -o jsonpath='{.data.ROOT_USER_PASSWORD}' | base64 -d
+    kubectl get secret semaphore-authentication -n default -o jsonpath='{.data.ROOT_USER_TOKEN}' | base64 -d
     ```
 
 Open `https://id.semaphore.localhost` and log in!

helm-chart/templates/NOTES.txt

@@ -5,5 +5,5 @@ To start using the app, go to: https://id.{{ .Values.global.domain.name }}/login
 
 You can fetch credentials for the login running this command:
 
-echo "Email: $(kubectl get secret {{ .Values.global.rootUser.secretName }} -n {{ .Release.Namespace }} -o jsonpath='{.data.email}' | base64 -d)"; echo "Password: $(kubectl get secret {{ .Values.global.rootUser.secretName }} -n {{ .Release.Namespace }} -o jsonpath='{.data.password}' | base64 -d)"; echo "API Token: $(kubectl get secret {{ .Values.global.rootUser.secretName }} -n {{ .Release.Namespace }} -o jsonpath='{.data.token}' | base64 -d)"
+echo "Email: $(kubectl get secret {{ include "secrets.authentication.name" . }} -n {{ .Release.Namespace }} -o jsonpath='{.data.ROOT_USER_EMAIL}' | base64 -d)"; echo "Password: $(kubectl get secret {{ include "secrets.authentication.name" . }} -n {{ .Release.Namespace }} -o jsonpath='{.data.ROOT_USER_PASSWORD}' | base64 -d)"; echo "API Token: $(kubectl get secret {{ include "secrets.authentication.name" . }} -n {{ .Release.Namespace }} -o jsonpath='{.data.ROOT_USER_TOKEN}' | base64 -d)"
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