fix(boinc): update image reference (#2015)

* fix(boinc): update image reference

* add password field in gui

Co-authored-by: Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>

charts/stable/boinc/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: tccr.io/truecharts/boinc
   pullPolicy: IfNotPresent
-  tag: v18.04.1
+  tag: latest@sha256:2d8c4bfa3bf5bcca2d6238ce38798ab049dd20b0613f7957323ddc974b6de9c2
 
 securityContext:
   readOnlyRootFilesystem: false
@@ -11,9 +11,6 @@ podSecurityContext:
   runAsUser: 0
   runAsGroup: 0
 
-secret:
-  # PASSWORD: ""  (Optional)
-
 service:
   main:
     ports: