LNK-3005: app-label-configuration (#489)

### 🛠 Description of Changes

Please provide a high-level overview of the changes included in this PR.

### 🧪 Testing Performed

Please describe the testing that was performed on the changes included
in this PR.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Introduced a new application-specific identifier for the Loki logging
service.
- Enhanced logging configuration by allowing dynamic reference to the
application name.

- **Bug Fixes**
- Improved configurability of the logging setup by replacing hardcoded
values with dynamic references.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Java/measureeval/src/main/resources/application.yml

@@ -11,6 +11,7 @@ telemetry:
 loki:
   enabled: true
   url: http://localhost:3100
+  app: link-dev
 
 springdoc:
   api-docs:

Java/measureeval/src/main/resources/logback-spring.xml

@@ -3,6 +3,7 @@
 
     <springProperty scope="context" name="loki_enabled" source="loki.enabled"/>
     <springProperty scope="context" name="loki_url" source="loki.url"/>
+    <springProperty scope="context" name="loki_app" source="loki.app" />
 
     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
         <encoder>
@@ -18,7 +19,7 @@
                 </http>
                 <format>
                     <label>
-                        <pattern>app=link-cloud,component=MeasureEval,TraceId="%X{traceId}",SpanId="%X{spanId}"</pattern>
+                        <pattern>app=${loki_app},component=MeasureEval,TraceId="%X{traceId}",SpanId="%X{spanId}"</pattern>
                         <readMarkers>true</readMarkers>
                     </label>
                     <message>