SIENTIAPDE-1174

Update requirements and environment configurations

- Changed the sientia-dataops-library dependency to a relative path in requirements.txt.
- Updated image tag to 0.3.0 in values.yaml.
- Renamed HTTP_SERVER_PORT to HTTP_METRICS_PORT in app.py and updated its default value to 9090.
- Added TAG_WRITTEN_COUNT metric in metrics.py to track writing processes.
- Incremented TAG_WRITTEN_COUNT in DataManager upon successful data insertion.

values.yaml

@@ -11,7 +11,7 @@ image:
   # This sets the pull policy for images.
   pullPolicy: Always
   # Overrides the image tag whose default is the chart appVersion.
-  tag: "0.2.7"
+  tag: "0.3.0"
 
 # This is for the secrets for pulling an image from a private repository more information can be found here: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
 imagePullSecrets:
@@ -190,7 +190,7 @@ env:
     value: "10"
   - name: LOG_LEVEL
     value: "DEBUG"
-  - name: HTTP_SERVER_PORT
+  - name: HTTP_METRICS_PORT
     value: "9090"