DTSRD-5439 Adjust AppInsights config for PREVIEW (#1097)

* Update build.gradle

* logstash encoder 8.1

* DTSRD-5439 AppInsights config for PREVIEW

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Co-authored-by: lukasz-wolski <1005015+lukasz-wolski@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: 3 people

charts/rd-location-ref-api/values.preview.template.yaml

@@ -19,8 +19,8 @@ java:
   keyVaults:
     rd:
       secrets:
-        - name: ApplicationInsightsInstrumentationKey
-          alias: azure.application-insights.instrumentation-key
+        - name: app-insights-connection-string
+          alias: app-insights-connection-string
         - name: LD-SDK-KEY
           alias: LD_SDK_KEY
         - name: location-ref-api-s2s-secret