Fix broken dependencies in helm chart and allow using existing secrets in the chart (#18941)

* Add ability to specify an existing Secret (#18139)

Closes #18139

* Allow using secrets with external postgres

* Upgrade CronJob to batch/v1

* Allow using redis.auth.existingSecret

* Helmignore mastodon-*.tgz for easy local development

* Upgrade helm dependencies

* Upgrade postgresql to 11

* Allow putting SMTP password into a secret

* Add optional login to SMTP secret

This to allow setting LOGIN either in values.yaml or
in the secret.

* Switch to bitnami charts full archive

This prevents older versions from disappearing, see
https://github.com/bitnami/charts/issues/10539 for
full context.

Co-authored-by: Ted Tramonte <ted.tramonte@gmail.com>

chart/Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 1.2.1
+version: 2.0.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
@@ -24,13 +24,13 @@ appVersion: 3.3.0
 
 dependencies:
   - name: elasticsearch
-    version: 15.10.3
-    repository: https://charts.bitnami.com/bitnami
+    version: 19.0.1
+    repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
     condition: elasticsearch.enabled
   - name: postgresql
-    version: 8.10.14
-    repository: https://charts.bitnami.com/bitnami
+    version: 11.1.3
+    repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
     condition: postgresql.enabled
   - name: redis
-    version: 10.9.0
-    repository: https://charts.bitnami.com/bitnami
+    version: 16.13.2
+    repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami