chore: fix typos

Author: Steffen911

README.md

@@ -49,7 +49,7 @@ The required configuration options to set are:
       password: ""
 ```
 
-They can alternatively set via secret references (the secrets must exits):
+They can alternatively set via secret references (the secrets must exist):
 
 ```yaml
   langfuse:
@@ -119,8 +119,6 @@ langfuse:
 
 ##### With an external Postgres server with client certificates using own secrets and additionalEnv for mappings
 
-TODO(cb):
-
 ```yaml
 langfuse:
   salt: null

charts/langfuse/Chart.yaml

@@ -33,7 +33,7 @@ dependencies:
     condition: s3.deploy
     alias: s3
   - name: common
-    version: 2.x.x
+    version: 2.30.0
     repository: oci://registry-1.docker.io/bitnamicharts
 maintainers:
   - name: langfuse