fix: fix TestPing test

[Yisaer]

No description provided.

[codecov]

Codecov Report

Attention: 100 lines in your changes are missing coverage. Please review.

Comparison is base (d02721d) 63.08% compared to head (754cb33) 63.77%.
Report is 9 commits behind head on master.

Files	Patch %	Lines
internal/topo/planner/planner.go	65.85%	21 Missing and 7 partials ⚠️
internal/io/mock/test_source_connector.go	78.72%	10 Missing ⚠️
internal/topo/planner/planner_graph.go	75.61%	9 Missing and 1 partial ⚠️
pkg/infra/saferun.go	23.08%	10 Missing ⚠️
internal/topo/node/decode_op.go	89.89%	7 Missing and 2 partials ⚠️
internal/topo/subtopo.go	88.57%	6 Missing and 2 partials ⚠️
internal/topo/topo.go	80.00%	8 Missing ⚠️
internal/io/mqtt/mqtt_source_connector.go	89.83%	4 Missing and 2 partials ⚠️
internal/io/http/rest_sink.go	0.00%	3 Missing ⚠️
internal/binder/function/funcs_obj.go	0.00%	2 Missing ⚠️
... and 6 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2595      +/-   ##
==========================================
+ Coverage   63.08%   63.77%   +0.69%     
==========================================
  Files         320      327       +7     
  Lines       37496    37987     +491     
==========================================
+ Hits        23653    24226     +573     
+ Misses      11703    11598     -105     
- Partials     2140     2163      +23     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.