📝 docs: Change READMEs to pin mariadb helm chart version instead of a…

…lways using the latest

README.md

@@ -57,7 +57,7 @@ To quickly get started with Unguard, install the Unguard Helm chart using the [H
 2. Install MariaDB
 
    ```sh
-   helm install unguard-mariadb bitnami/mariadb --set primary.persistence.enabled=false --wait --namespace unguard --create-namespace
+   helm install unguard-mariadb bitnami/mariadb --version 11.5.7 --set primary.persistence.enabled=false --wait --namespace unguard --create-namespace
    ```
 
 3. Install Unguard

chart/README.md

@@ -32,7 +32,7 @@ To install the chart with the release name `unguard` in a new namespace `unguard
     If you want to change this you also have to adopt the ```mariaDB.serviceName```value.
 
     ```sh
-    helm install unguard-mariadb bitnami/mariadb --set primary.persistence.enabled=false --wait --namespace unguard --create-namespace
+    helm install unguard-mariadb bitnami/mariadb --version 11.5.7 --set primary.persistence.enabled=false --wait --namespace unguard --create-namespace
     ```
 
     > **Note:** \

src/membership-service/README.md

@@ -15,7 +15,7 @@ docker run --detach --name memberships-db \
   --env MARIADB_PASSWORD=mariadb-root-password \
   --env MARIADB_DATABASE=memberships \
    -p 3306:3306 \
-   mariadb:latest
+   mariadb:10.6.12
 ```
 
 And then update the environment variables for the membership-service to fit: