Use a generic hostname instead of hardcoded ip for grafanas prometheus (#326)

* Use a generic hostname instead of hardcoded ip for grafanas prometheus datasource

* Bump micronaut-parent to 4.8.3

Author: Tim Middleton

monitoring/datasources.yaml

@@ -6,5 +6,5 @@ apiVersion: 1
 datasources:
   - name: prometheus
     type: prometheus
-    url: http://172.17.0.1:9090
+    url: http://host.docker.internal:9090
     isDefault: true

templates/micronaut/pom.xml

@@ -14,7 +14,7 @@
   <parent>
     <groupId>io.micronaut.platform</groupId>
     <artifactId>micronaut-parent</artifactId>
-    <version>4.7.3</version> 
+    <version>4.8.3</version>
     <relativePath/>
   </parent>