Add a new column and metric filter

Signed-off-by: Wei-Chun, Chang <wcchang@infuseai.io>
Co-authored-by: Timothy Lee <ctiml@infuseai.io>

models/marts/metrics.yml

@@ -27,5 +27,10 @@ metrics:
     time_grains: [ day, week, month ]
     dimensions: [ repo ]
 
+    filters:
+      - field: author
+        operator: '!='
+        value: "'github-actions[bot]'"
+
     tags:
-      - piperider
+    - piperider