test: replace weak literal connectors password with secretKeyRef in multitenancy scenario

The GKE CI cluster has a ValidatingAdmissionPolicy (deny-weak-password-defaults)
that rejects Deployments where a password-named env var is set to a known default
or a value shorter than 12 characters. The connectors env var `password: password`
was triggering this policy, causing the kemt (keycloak-mt) scenario to fail on
Helm install across all chart versions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: eamonnmoloney

charts/camunda-platform-8.10/test/integration/scenarios/chart-full-setup/values/features/multitenancy.yaml

@@ -33,6 +33,9 @@ connectors:
     - name: username
       value: username
     - name: password
-      value: password
+      valueFrom:
+        secretKeyRef:
+          name: integration-test-credentials
+          key: password
     - name: CAMUNDA_CLIENT_WORKER_DEFAULTS_TENANTIDS
       value: "<default>, Tenant_Main_Connectors, Tenant_Second_Connectors, Tenant_1_Connectors, Tenant_2_Connectors"

charts/camunda-platform-8.6/test/integration/scenarios/chart-full-setup/values/features/multitenancy.yaml

@@ -45,6 +45,9 @@ connectors:
     - name: username
       value: username
     - name: password
-      value: password
+      valueFrom:
+        secretKeyRef:
+          name: integration-test-credentials
+          key: password
     - name: ZEEBE_CLIENT_DEFAULT_JOB_WORKER_TENANT_IDS
       value: "<default>, Tenant_Main_Connectors, Tenant_Second_Connectors, Tenant_1_Connectors, Tenant_2_Connectors"

charts/camunda-platform-8.7/test/integration/scenarios/chart-full-setup/values/features/multitenancy.yaml

@@ -42,6 +42,9 @@ connectors:
     - name: username
       value: username
     - name: password
-      value: password
+      valueFrom:
+        secretKeyRef:
+          name: integration-test-credentials
+          key: password
     - name: CAMUNDA_CLIENT_ZEEBE_DEFAULTS_TENANTIDS
       value: "<default>, Tenant_Main_Connectors, Tenant_Second_Connectors, Tenant_1_Connectors, Tenant_2_Connectors"

charts/camunda-platform-8.8/test/integration/scenarios/chart-full-setup/values/features/multitenancy.yaml

@@ -45,6 +45,9 @@ connectors:
     - name: username
       value: username
     - name: password
-      value: password
+      valueFrom:
+        secretKeyRef:
+          name: integration-test-credentials
+          key: password
     - name: ZEEBE_CLIENT_DEFAULT_JOB_WORKER_TENANT_IDS
       value: "<default>, Tenant_Main_Connectors, Tenant_Second_Connectors, Tenant_1_Connectors, Tenant_2_Connectors"

charts/camunda-platform-8.9/test/integration/scenarios/chart-full-setup/values/features/multitenancy.yaml

@@ -45,6 +45,9 @@ connectors:
     - name: username
       value: username
     - name: password
-      value: password
+      valueFrom:
+        secretKeyRef:
+          name: integration-test-credentials
+          key: password
     - name: CAMUNDA_CLIENT_WORKER_DEFAULTS_TENANTIDS
       value: "<default>, Tenant_Main_Connectors, Tenant_Second_Connectors, Tenant_1_Connectors, Tenant_2_Connectors"