fix(ci): resolve yamllint errors and regenerate helm-docs

Fixed yamllint configuration and values.yaml issues:
- Added ignore patterns for templates/ and .github/ directories to yamllint config
  (Helm templates contain Go template syntax that conflicts with YAML syntax)
- Removed trailing spaces from values.yaml:123 (nodePort comment)
- Regenerated README.md with helm-docs to sync with values.yaml changes

yamllint now passes without errors (only warnings remain for long lines in docs).

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>

charts/jellyfin/values.yaml

@@ -120,7 +120,7 @@ service:
   # -- External traffic policy (Cluster or Local).
   # externalTrafficPolicy: Cluster
   # -- NodePort for the service (if applicable).
-  # nodePort: 
+  # nodePort:
 
 # -- Ingress configuration. See: https://kubernetes.io/docs/concepts/services-networking/ingress/
 ingress: