chore: update qdrant version to 1.15.4 in Chart.yaml and values.yaml (#92)

This pull request updates the Qdrant dependency in the RAG
infrastructure to the latest version, ensuring compatibility and access
to recent features and fixes.

Dependency version updates:

* Updated the Qdrant Helm chart version from `1.12.6` to `1.15.4` in
`Chart.yaml` to use the latest stable release.
* Updated the Qdrant Docker image tag from `v1.14.1` to `v1.15.4` in
`values.yaml` for consistency with the Helm chart version.

Author: a-klos

infrastructure/rag/Chart.lock

@@ -4,7 +4,7 @@ dependencies:
   version: 0.12.1
 - name: qdrant
   repository: https://qdrant.github.io/qdrant-helm
-  version: 1.15.3
+  version: 1.15.4
 - name: minio
   repository: https://charts.bitnami.com/bitnami
   version: 15.0.7

infrastructure/rag/Chart.yaml

@@ -13,7 +13,7 @@ dependencies:
   version: "0.12.1"
   condition: features.langfuse.enabled
 - name: qdrant
-  version: 1.15.3
+  version: 1.15.4
   repository: "https://qdrant.github.io/qdrant-helm"
   condition: features.qdrant.enabled
 - name: minio

infrastructure/rag/values.yaml

@@ -576,4 +576,4 @@ ollama:
 
 qdrant:
   image:
-    tag: v1.14.1
+    tag: v1.15.4