ci(codecov): fix codecov config (#1906)

* ci(codecov): fix codecov config

Signed-off-by: xjasonlyu <xjasonlyu@gmail.com>

* fix the upper range to 70

Signed-off-by: xjasonlyu <xjasonlyu@gmail.com>

---------

Signed-off-by: xjasonlyu <xjasonlyu@gmail.com>

codecov.yaml

@@ -1,9 +1,12 @@
-codecov:
-  disable_default_path_fixes: true
-
-fixes:
-  - "github.com/lf-edge/ekuiper::"
+coverage:
+  precision: 2
+  round: nearest
+  range: "60...70"
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
 
 ignore:
-  - "**/main.go"
-  - "main.go"
+  - "**/main.go"